Wednesday, January 19, 2011

Cadillac Eldorado, 1957

Cadillac Eldorado, 1957

 
     
The Eldorado model was part of the Cadillac line from 1953 to 2002. The Cadillac Eldorado was the longest running American personal luxury car as it was the only one sold after the 1998 model year. Its main competitors included the Mark Series and the lower-priced Buick Riviera. The name Eldorado was derived from the Spanish words "el dorado", the "gilded one"; the name was given originally to the legendary chief or "cacique" of a S. American Indian tribe. Legend has it that his followers would sprinkle his body with gold dust on ceremonial occasions and he would wash it off again by diving into a lake. The name more frequently refers to a legendary city of fabulous riches, somewhere in S. America, that inspired many European expeditions, including one to the Orinoco by England's Sir Walter Raleigh.

The History
The name was proposed for a special show car built in 1952 to mark Cadillac's Golden Anniversary; it was the result of an in-house competition won by Mary-Ann Zukosky (married name = Marini), a secretary in the company's merchandising department. Another source, Palm Springs Life magazine, attributes the name to a resort destination in California's Coachella Valley that was a favorite of General Motors executives, the Eldorado Country Club. In any case, the name was adopted by the company for a new, limited-edition convertible that was added to the line in 1953.

Though cars bearing the name varied considerably in bodystyle and mechanical layout during this long period, the Eldorado models were always near the top of the Cadillac line. Nevertheless, and except for the Eldorado Brougham models of 1957-1960, the most expensive models were always the opulent, long wheel-based "Series 75" sedans and limousines.

1957
1957 saw the Eldorado (both the Biarritz convertible and the Seville hardtop) once again present an innovative rear-end design, a low, downswept fenderline capped by a pointed, in-board fin. The rear fenders were commonly referred to as "chipmunk cheeks". This concept was used for two years, but did not spawn any imitators.

1957 was chiefly notable, though, for the introduction of one of GM's most memorable designs, the Eldorado Brougham. This four-door hardtop with rear-opening rear doors was an ultra-luxury car that cost an astonishing $13,000+, more than the Rolls-Royce Silver Cloud of the same year. It featured a stainless steel roof, air suspension, the first dual headlights, the first memory power seats, and every possible kind of appearance and convenience feature that GM's most inventive minds could devise. This design ran for two years and of course sold in very small quantities (704 units in total) owing to the price. It has been estimated that GM lost $10,000 on every one, but these virtually hand-assembled cars are today among the rarest and most collectible of all postwar American models.

1959
A different Eldorado Brougham was sold for 1959 and 1960. These cars were not quite so extravagantly styled but were very unusual pieces in themselves. Priced at $13,075, they cost $1 more, each, than their older siblings. The design was 100% Cadillac but the company contracted out the assembly to Pinin Farina of Italy, with whom the division has had a long-running relationship, and these Eldorados were essentially hand-built in Italy. Their discreet, narrow taillights, nicely integrated into modest tailfins, contrasted sharply with the "rocketship" taillights and massive fins of the standard 1959 Cadillacs and were an indication of where Caddy styling would go in the next few years. However, build quality was not nearly to the standard of the Detroit hand-built 1957–1958s, and the 1959–1960 Broughams are less desirable, it seems, than the 1st generation Broughams, although their value and collectibility remain high.

The last Eldorado Seville was built in 1960. After that, the Eldorado convertible became essentially a trim version of the standard Cadillac convertible. With the end of the importation of the Italian-built Eldorados in 1960, the name entered something of a fallow period.

Cadillac Eldorado, 1956

Cadillac Eldorado, 1956



The Eldorado model was part of the Cadillac line from 1953 to 2002. The Cadillac Eldorado was the longest running American personal luxury car as it was the only one sold after the 1998 model year. Its main competitors included the Mark Series and the lower-priced Buick Riviera. The name Eldorado was derived from the Spanish words "el dorado", the "gilded one"; the name was given originally to the legendary chief or "cacique" of a S. American Indian tribe. Legend has it that his followers would sprinkle his body with gold dust on ceremonial occasions and he would wash it off again by diving into a lake. The name more frequently refers to a legendary city of fabulous riches, somewhere in S. America, that inspired many European expeditions, including one to the Orinoco by England's Sir Walter Raleigh.

History
The name was proposed for a special show car built in 1952 to mark Cadillac's Golden Anniversary; it was the result of an in-house competition won by Mary-Ann Zukosky (married name = Marini), a secretary in the company's merchandising department. Another source, Palm Springs Life magazine, attributes the name to a resort destination in California's Coachella Valley that was a favorite of General Motors executives, the Eldorado Country Club. In any case, the name was adopted by the company for a new, limited-edition convertible that was added to the line in 1953.

1953
The 1953 Eldorado was a special-bodied, low-production convertible (532 units in total). It was the production version of the 1952 El Dorado "Golden Anniversary" concept car. Available in four unique colors (Aztec Red, Alpine White, Azure Blue and Artisan Ochre - the latter is a yellow hue, although it was shown erroneously as black in the color folder issued on this rare model). Convertible tops were available in either black or white Orlon. There was no special badging on the car, other than the "Eldorado" nameplate, in "gold", in the center of the dash. A hard tonneau cover, flush with the rear deck, hid the top in the open car version.
This first Eldorado had a wraparound windshield and a cut-down beltline, the latter signifying a dip in the sheetmetal at the bottom of the side windows. These two touches were especially beloved by General Motors Styling Chief Harley Earl and subsequently were widely copied by other marques. In fact, throughout the 50s, Eldorado was GM's styling leader, and since GM led the industry, where the Eldorado went, everyone else would tend to follow.

1954
In 1954, Eldorado lost its unique sheet metal, sharing its basic body shell with standard Cadillacs. Distinguished now mainly by trim pieces, this allowed GM to lower the price and they were rewarded with a substantial jump in sales.

1955
For 1955, the Eldorado's body gained its own rear end styling with high, slender, pointed tailfins. These contrasted with the rather thick, bulbous fins which were common at the time and were an example of Eldorado once again pointing the way forward.

For 1956, a two-door hardtop coupe version appeared, called the Eldorado Seville.

1957
1957 saw the Eldorado (both the Biarritz convertible and the Seville hardtop) once again present an innovative rear-end design, a low, downswept fenderline capped by a pointed, in-board fin. The rear fenders were commonly referred to as "chipmunk cheeks". This concept was used for two years, but did not spawn any imitators.

1957 was chiefly notable, though, for the introduction of one of GM's most memorable designs, the Eldorado Brougham. This four-door hardtop with rear-opening rear doors was an ultra-luxury car that cost an astonishing $13,000+, more than the Rolls-Royce Silver Cloud of the same year. It featured a stainless steel roof, air suspension, the first dual headlights, the first memory power seats, and every possible kind of appearance and convenience feature that GM's most inventive minds could devise. This design ran for two years and of course sold in very small quantities (704 units in total) owing to the price. It has been estimated that GM lost $10,000 on every one, but these virtually hand-assembled cars are today among the rarest and most collectible of all postwar American models.

1959
A different Eldorado Brougham was sold for 1959 and 1960. These cars were not quite so extravagantly styled but were very unusual pieces in themselves. Priced at $13,075, they cost $1 more, each, than their older siblings. The design was 100% Cadillac but the company contracted out the assembly to Pinin Farina of Italy, with whom the division has had a long-running relationship, and these Eldorados were essentially hand-built in Italy. Their discreet, narrow taillights, nicely integrated into modest tailfins, contrasted sharply with the "rocketship" taillights and massive fins of the standard 1959 Cadillacs and were an indication of where Caddy styling would go in the next few years. However, build quality was not nearly to the standard of the Detroit hand-built 1957–1958s, and the 1959–1960 Broughams are less desirable, it seems, than the 1st generation Broughams, although their value and collectibility remain high.

The last Eldorado Seville was built in 1960. After that, the Eldorado convertible became essentially a trim version of the standard Cadillac convertible. With the end of the importation of the Italian-built Eldorados in 1960, the name entered something of a fallow period.

Audi Coupe GT, 1985

Audi Coupe GT, 1985



The Audi Coupe GT was a 2-door sports car produced and sold by Audi from 1981 to 1987. The car was an attempt by Audi to offer a more affordable version of its turbocharged, all-wheel drive Quattro. The Coupe GT featured a similar body shape to the Quattro, but without the knife-edged fender flares of the more expensive car. Mechanically, the biggest changes from the Quattro to the GT were the use of a naturally aspirated 5-cylinder engine and a front-wheel drive drivetrain.

The Audi Coupe range was fitted with the quattro All Wheel Drive system from late 1984 to produce the Audi Coupe quattro, a model which was rarer than the Turbocharged Quattro mode

Audi Sport quattro S1, 1985

Audi Sport quattro S1, 1985


The Audi Sport Quattro S1 was introduced at the end of 1984 as an update to the Audi Sport Quattro. The car featured a inline 5-cylinder engine that displaced 2,110 cc (128.8 cu in) and produced an officialy quoted figure of 350 kW (480 PS/470 bhp). However, the turbocharger utilised a recirculating air system, with the aim of keeping the turbo spinning at high speed, and the actual figure was in excess of 500 bhp (373 kW/507 PS) at 8000 rpm. In addition to the improved power output, an aggressive aerodynamic kit was added that featured very distinctive wings and spoilers to the front and rear of the car to increase downforce. The weight was lightened to just 1,090 kg (2,403 lb), and now accelerate from 0-100 km/h (62 mph) in just 3.1 seconds.

Some of the cars were supplied with a "power-shift gearbox", which is said to be a forerunner of today's Direct-Shift Gearbox (DSG) technology.

The S1 proved to be an immediate success in the rally circuit, helping Walter Röhrl and Christian Geistdörfer win the 1985 San Remo Rally. A modified version of the S1, was also driven by Michèle Mouton. The S1 evolution would become the final Group B car produced by Audi, with the works team withdrawing from the Championship following the 1986 rally in Portugal.

Twenty years after the cancellation of Group B, the Sport Quattro S1 was still widely regarded as the most powerful rally car ever fielded in international competition, with the final factory machines of 1986 rated at an incredible 441 kW (600 PS/591 bhp).

In addition to Group B competition, the S1 won the 1985 Pikes Peak International Hill Climb with Michèle Mouton in the driving seat, setting a world record time in the process. This victory was repeated in 1987, this time at the hands of Walter Röhrl, and again in 1988 (Michèle Mouton) and 1989 (Bobby Unser), completing a hat-trick.

Monday, January 10, 2011

Bentley T1, 1966

Bentley T1, 1966



The Bentley T-Series was even more rarely built than the Rolls Royce Silver Shadow. The Bentley being technically an identical twin of the Rolls Royce seems to have been bought mostly by owners wishing a little more understatement. The formerly more sportive image of Bentley motor cars differing from Rolls Royces was gone by the time the Silver Shadow/Bentley T was introduced and thus couldn't motivate buyers any more. The outward appearance of a Bentley T is slightly more dynamic because the bonnet design is a few centimeters lower and the radiator shell shape with its rounded edges is smoother.

The T1 was made from 1967-1977 and the T2 was made from 1977-1980.

Production
T1: 1868
- T1 saloon (1965-1977): 1703
- T1 long wheelbase (1971-1976): 9
- Bentley T1 two door saloon (1966-1971): 114 (15 by James Young)
- T1 coupé by Pininfarina (1968): 1
- T1 convertible (1967-1971): 41
T2: 568
- T2 (1977-1980): 558
- T2 long wheelbase (1977-1980): 10

Bentley S1 Continental, 1956

Bentley S1 Continental, 1956

The Bentley S1 was a luxury car produced by Bentley Motors Limited from 1955 through 1959. It marked Bentley parent, Rolls-Royce, reducing the differences between their Bentley and Roll-Royce models, with the S1 differing only in its radiator design and badging from the Rolls-Royce Silver Cloud I.

The models shared the 4.9 L (4887 cc/298 in³) straight-6 engine, with this being the last vehicle to use this engine. The bore was 95.25 mm (3.7 in) and the stroke was 114.3 mm (4.5 in). Twin SU carburetors were fitted, with upgraded models from 1957. A 4-speed automatic transmission was standard, with a 4-speed manual available as an option. Two wheelbases were produced: 123 in (3124 mm) and, from 1957, 127 in (3226 mm).

A somewhat sportier coachbuilt-only S1 Continental was introduced six months later.

Production
S1: 3072 (145 with coachbuilt bodies)
S1 long wheelbase: 35 (12 with coachbuilt bodies)
S1 Continental: 431

Acura 3.2 CL Type-S, 2003

Acura 3.2 CL Type-S, 2003

 
 


For the 2003 model year, Acura's goals for the 3.2 CL were to:
Increase performance
Update styling for a sleeker, more aggressive look

In support of those goals, the 2003 3.2 CL has received the following enhancements:

Powertrain
While it continues to come with a 5-speed Sequential SportShift automatic transmission, the CL Type-S now offers a new close ratio 6-speed manual transmission as well. Models with the new manual transmission also feature:
- Helical limited slip differential
- Curb weight of 3446 lbs. (compared to 3510 lbs. for the CL Type-S with automatic transmission)
- Multi-cone synchronizers
- Self-adjusting clutch with dual-mass flywheel
- Short-throw shift linkage

Chassis
+ CL Type-S with manual transmission replaces the VSA found in the CL Type-S with automatic transmission with new helical limited slip differential
+ New 6-spoke 16 inch wheels (3.2 CL)
+ New 6-spoke 17 inch wheels (CL Type-S)
+ CL Type-S with manual transmission adds two hydraulic engine mount dampers to counter engine movement

Body
Front Styling
+ Revised grille with body-colored surround
+ Revised headlights with black accents
Rear Styling
+ Revised taillight lenses with clear upper portion
+ New exhaust finishers

Safety/Convenience
+ OnStar(R) is standard equipment on CL models equipped with the Acura Satellite-Linked Navigation System
+ Lower Anchors and Tethers for Children (LATCH) System added on outboard rear seats for child safety seat attachment
+ Driver's Dual Stage Supplemental Restraint System (SRS)
+ Auto-up driver's side window

Interior Styling
CL Type-S
+ Models with black interiors receive titanium-look trim on doors and center console
+ In models with 6-speed manual transmission, center console redesigned to accommodate manual shifter and hand-operated parking brake
+ Perforated leather door inserts

Acura TL ASPEC Concept, 2003

Acura TL ASPEC Concept, 2003

 
 
 
 
 Powertrain
+ 300+ horsepower, powertrain including:
- Performance-tuned 3.2-liter, 24-valve, V-6 engine
- High flow intake and exhaust
- 6-speed close-ratio manual transmission with limited-slip differential

Suspension
+ A-SPEC high performance suspension with track-tuned shocks and springs
+ 21-inch prototype alloy wheels
+ High performance tires
+ Brembo 4-wheel disc brakes with 8-piston calipers and 15-inch rotors

Body/Styling
+ Panoramic glass roof
+ Larger, high-flow exhaust finishers
+ 42 mm wider track
+ Wider fender flares
+ Trunk lid spoiler
+ Redesigned front bumper with larger Acura grille and lower air intakes
+ Redesigned rear bumper
+ 3-stage silver-gray Mica Pearl paint
+ New finish treatment on headlights/tail lights, clear side indicators

Interior
+ Premium Matador Red sport/luxury interior
+ Deeply bolstered custom leather seats with heating and cooling ventilation
+ Ultra suede headliner
+ Carbon/Kevlar accents on door panels and center console
+ Carbon/Kevlar sport steering wheel
+ Aluminum shift knob and foot pedals
+ Rear bucket seats with storage

Technology/Safety
+ Adaptive Cruise Control
+ Rearview camera

Monday, January 3, 2011

Mercury Marauder Concept, 2002

Mercury Marauder Concept, 2002

 
 

From 2003 to 2004, Ford produced the Marauder as a "high-performance" version of the Mercury Grand Marquis sedan.
The 2003 Mercury Marauder was based on the Ford Panther platform which utilizes a hydroformed steel frame, front rack and pinion steering, in addition to totally revised front and rear suspension with monotube shock absorbers, the Marauder also had a naturally aspirated 4.6 L DOHC V8 with 302 hp and 318 ft·lbf torque. 2004 was the last year for this Marauder mostly due to lackluster sales, blamed by some on bland styling and an incorrect target audience. Originally, they were produced in "any color the customer desired, so long as it was black." Eventually, the Marauder was offered in silver, blue, and red but in limited quantities.

After the Marauder was discontinued, the Ford Crown Victoria LX Sport remains and bears a similar appearance to the Marauder but is powered by the lesser 4.6 L 2-valve SOHC V8 engine rated at 239 hp. The LX Sport still offers the same exterior and interior colors of the Marauder, however it uses wood grain trim on the dashboard and doors, unlike the Marauder, which used aluminum.

Total production for the 2003 - 2004 Mercury Marauder was 11,052:
    * 2003 - Total: 7839 (328 Blue, 417 Silver, 7094 Black)
    * 2004 - Total: 3213 (980 Dark Toreador Red, 997 Silver, 1236 Black)

McLaren F1 GTR, 1995

McLaren F1 GTR, 1995

 
Built at the request of race teams, such as those owned by Ray Bellm and Thomas Bscher, in order to compete in the BPR Global GT Series, the McLaren F1 GTR was a custom built race car which introduced a modified engine management system that increased power output — however, air-restrictors mandated by racing regulations reduced the power back to 600 hp (447 kW) at 7500 RPM. The cars extensive modifications included changes to body panels, suspension, aerodynamics and the interior. The McLaren F1 GTR would go on to take its greatest achievement with 1st, 3rd, 4th, 5th, and 13th places in the 1995 24 Hours of Le Mans, beating out custom built prototype sports cars.

In total, nine McLaren F1 GTRs would be built for 1995.

McLaren F1 GTR '96
To follow up on the success of the McLaren F1 GTR into 1996, McLaren further developed the '95 model, leading to a size increase but weight decrease. Nine more F1 GTRs were built to 1996 spec, while some 1995 cars were still campaigned by privateers. McLaren F1 GTR '96 chassis #14R is notable as being the first non-Japanese car to win a race in the All-Japan Grand Touring Car Championship (JGTC). The car was driven by David Brabham and John Nielsen. The weight was reduced with around 100 kg from the 1995 GTR edition and the engine was kept detuned at 600 HP to comply with racing regulations.

McLaren F1 GTR '97
With the F1 GT homologated, McLaren could now develop the McLaren F1 GTR for the 1997 season. Weight was further reduced and a sequential transaxle was added. The engine was slightly destroked to 6.0L instead of the previous 6.1L. Due to the heavily modified bodywork, the McLaren F1 GTR '97 is often referred to as the "Longtail" thanks to the rear bodywork being extended to increase rear downforce. A total of ten McLaren F1 GTR '97s were built. The weight was reduced to a total of 910 kg.

McLaren F1, 1993

McLaren F1, 1993

 
 
 The McLaren F1 is a sports car designed and manufactured by Gordon Murray and McLaren Automotive. On March 31, 1998, it set the record for the fastest production car in the world, 240 mph (391 km/h). As of April 2009, the McLaren F1 is succeeded by three faster cars in sheer top speed, but is still the fastest naturally aspirated production car.

The car features numerous proprietary designs and technologies. It is lighter and has a more streamlined structure than even most of its modern rivals and competitors despite having one seat more than most similar sports cars, with the driver's seat located in the middle. It features a powerful engine and is somewhat track oriented, but not to the degree that it compromises everyday usability and comfort. It was conceived as an exercise in creating what its designers hoped would be considered the ultimate road car. Despite not having been designed as a track machine, a modified race car edition of the vehicle won several races, including the 24 Hours of Le Mans in 1995, where it faced purpose-built prototype race cars. Production began in 1992 and ended in 1998. In all, 106 cars were manufactured, with some variations in the design.

Chief engineer Gordon Murray's design concept was a common one among designers of high-performance cars: low weight and high power. This was achieved through use of high-tech and expensive materials like carbon fibre, titanium, gold, magnesium and kevlar. The McLaren F1 was the first production car to use a carbon-fibre monocoque chassis.

The idea was first conceived when Murray was waiting for a flight home from the fateful Italian Grand Prix in 1988; Murray drew a sketch of a three seater sports car and proposed it to Ron Dennis, pitched as the idea of creating the ultimate road car, a concept that would be heavily influenced by the Formula One experience and technology of the company and thus reflect that skill and knowledge through the McLaren F1.

Engine
Gordon Murray insisted that the engine for this car be naturally aspirated to increase reliability and driver control. Turbochargers and superchargers increase power but they increase complexity and can decrease reliability as well as introducing an additional aspect of latency and loss of feedback, the ability of the driver to maintain maximum control of the engine is thus decreased. Murray initially approached Honda for an NA powerplant with 550 bhp (410 kW; 560 PS), 600 mm (23.6 in) block length and a total weight of 250 kg (551 lb), it should be derived from the Formula One powerplant in the then-dominating McLaren/Honda cars.

When Honda refused, Isuzu, then planning an entry into Formula One, had a 3.5 V12 engine being tested in a Lotus chassis. The company was very interested in having the engine fitted into the McLaren F1. However, the designers wanted an engine with a proven design and a racing pedigree.

The final result is a custom-built 6.1 L (6064 cc) 60-degree V12 with an aluminium alloy block and head, 86 mm (3.4 in) x 87 mm (3.4 in) bore/stroke, quad overhead camshafts for maximum flexibility of control over the four valves per cylinder and a chain drive for the camshafts for maximum reliability, the engine is dry sump. At 266 kg (586 lb), the resulting engine was slightly heavier than Murray's original maximum specification weight of 250 kg (551 lb) but was also considerably more powerful than he had specified. The bespoke engineered engine for the McLaren F1 is called the BMW S70/2.

The carbon fibre body panels and monocoque required significant heat insulation in the engine compartment, so Murray's solution was to line the engine bay with a highly efficient heat-reflector: gold foil. Approximately 25 g (0.8 ounce) of gold was used in each car.

The road version used a compression ratio of 11:1 to produce 627 hp (468 kW; 636 PS) at 7400 rpm—considerably more than Murray's specification of 550 horsepower (404 kW). Torque output of 480 ft·lb (651 N·m) at 5600 rpm. The engine has a redline rev limiter set at 7500 rpm.

In contrast to raw engine power, a car's power-to-weight ratio is a better method of quantifying acceleration performance than the peak output of the vehicle's powerplant. The standard McLaren F1 achieves 550 hp/ton (403 kW/tonne), or just 3.6 lb/hp. Compare with the Ferrari Enzo at 434 hp/ton (314 kW/tonne) (4.6 lb/hp), the Bugatti Veyron at 530.2 hp/ton (395 kW/tonne) (4.1 lb/hp), and the SSC Ultimate Aero TT with an alleged 1003 hp/ton (747.9 kW/tonne) (2 lb/hp).

The cam carriers, covers, oil sump, dry sump, and housings for the camshaft control are made of magnesium castings. The intake control features twelve individual butterfly valves and the exhaust system has four Inconel catalysts with individual Lambda-Sond controls. The camshafts are continuously variable for increased performance, using a system very closely based on BMW's VANOS variable timing system for the BMW M3; it is a hydraulically-actuated phasing mechanism which retards the inlet cam relative to the exhaust cam at low revs, which reduces the valve overlap and provides for increased idle stability and increased low-speed torque. At higher RPM the valve overlap is increased by computer control to 42 degrees (compare 25 degrees on the M3) for increased airflow into the cylinders and thus increased performance.

To allow the fuel to atomise fully the engine uses two Lucas injectors per cylinder, with the first injector located close to the inlet valve - operating at low engine RPM - while the second is located higher up the inlet tract - operating at higher RPM. The dynamic transition between the two devices is controlled by the engine computer.

Each cylinder has its own miniature ignition coil. The closed-loop fuel injection is sequential. The engine has no knock sensor as the predicted combustion conditions would not cause this to be a problem. The pistons are forged in aluminium.

Every cylinder bore has a nikasil coating giving it a high degree of wear resistance.
From 1998 to 2000, the Le Mans-winning BMW V12 LMR sports car used a similar S70/2 engine.

Chassis and body
The McLaren F1 was the first production road car to use a complete carbon fiber reinforced plastic (CFRP) monocoque chassis structure. Aluminium and magnesium was used for attachment points for the suspension system, inserted directly into the CFRP.

The car features a central driving position - the driver's seat is located in the middle, ahead of the fuel tank and ahead of the engine, with a passenger seat slightly behind and on either side. The doors on the vehicle move up and out when opened, and are thus of the type butterfly doors.

The engine produces high temperatures under full application and thus cause a high temperature variation in the engine bay from no operation to normal and full operation. CFRP becomes mechanically stressed over time from high heat transfer effects and thus the engine bay was decided to not be constructed from CFRP.

Aerodynamics
The overall drag coefficient on the standard McLaren F1 is 0.32, compared with 0.36 for the faster Bugatti Veyron, and 0.357 for the current holder of the fastest car world record (as of 2008) - the SSC Ultimate Aero TT (in terms of top speed). The vehicle's frontal area is 1.79 square meters and the total Cx is 0.57. Due to the fact that the machine features active aerodynamics these are the figures presented in the most streamlined configuration.

The normal McLaren F1 features no wings to produce downforce (compare the LM and GTR editions), however the overall design of the underbody of the McLaren F1 in addition to a rear diffuser exploits ground effect to improve downforce which is increased through the use of two electric fans to further decrease the pressure under the car. A "high downforce mode" can be turned on and off by the driver. At the top of the vehicle there is an air intake to direct high pressure air to the engine with a low pressure exit point at the top of the very rear. Under each door is a small air intake to provide cooling for the oil tank and some of the electronics. The airflow created by the electric fans not only increase downforce, but the airflow that is created is further exploited through design, by being directed through the engine bay to provide additional cooling for the engine and the ECU. At the front, there are ducts assisted by an electric suction fan for cooling of the front brakes.

Suspension
Steve Randle who was the car's dynamicist was appointed responsible for the design of the suspension system of the McLaren F1 machine. It was decided that the ride should be comfortable yet performance oriented, however not as stiff and low as that of a true track machine, as that would imply reduction in practical use and comfort as well as increasing noise and vibration, which would be a contradictory design choice in relation to the former set premise - the goal of creating the ultimate road car.

From scratch the design of the McLaren F1 vehicle had strong focus on centering the mass of the car as near the middle as possible by extensive manipulation of placement of i.a. the engine, fuel and driver, allowing for a low polar moment of inertia in yaw. The McLaren F1 has 42% of its weight at the front and 58% at the rear, this figure changes less than 1% with the fuel load.

The distance between the mass centroid of the car and the suspension roll centre were designed to be the same front and rear to avoid unwanted weight transfer effects. Computer controlled dynamic suspension were considered but not applied due to the inherent increase in weight, increased complexity and loss of predictability of the vehicle.

Damper and spring specifications: 90 mm (3.5 in) bump, 80 mm (3.1 in) rebound with bounce frequency at 1.43 Hz at front and 1.80 Hz at the rear, despite being sports oriented these figures imply the rather soft ride and will inherently decrease track performance, but again, the McLaren F1 is not in concept nor implementation a track machine. As can be seen from the McLaren F1 LM, McLaren F1 GTR et al., the track performance potential is much higher than that in the stock McLaren F1 due to fact that car should be comfortable and usable in everyday conditions.

The suspension is a double wishbone system with an interesting design, i.a. that longitudinal wheel compliance is included without loss of wheel control, which allows the wheel to travel backwards when it hits a bump - increasing the comfort of the ride.

Castor wind-off at the front during braking is handled by McLaren's proprietary Ground Plane Shear Centre - the wishbones on either side in the subframe are fixed in rigid plane bearings and connected to the body by four independent bushes which are 25 times more stiff radially than axially. This solution provides for a castor wind-off measured to 1.02 degrees per G of braking deceleration. Compare the Honda NSX at 2.91 degrees per G, the Porsche 928 S at 3.60 degrees per G and the Jaguar XJ6 at 4.30 degrees per G respectively. The difference in toe and camber values are also of very small under lateral force application. Inclined Shear Axis is used at the rear of the machine provides measurements of 0.04 degrees per G of change in toe-in under braking and 0.08 degrees per G of toe-out under traction.

When developing the suspension system the facility of electro-hydraulic kinematics and compliance at Anthony Best Dynamics was employed to measure the performance of the suspension on a Jaguar XL16, a Porsche 928S and a Honda NSX to use as references.

Steering knuckles and the top wishbone/bell crank are also specially manufactured in an aluminium alloy. The wishbones are machined from a solid aluminium alloy with CNC machines.

Tyres
The McLaren F1 uses 235/45ZR17 front tyres and 315/45ZR17 rear tyres. These are specially designed and developed solely for the McLaren F1 by Goodyear and Michelin. The tyres are mounted on 17x9 inches and 17x11.5 inches cast magnesium wheels, protected by a tough protective paint. The five-spoke wheels are secured with magnesium retention pins.

The turning circle from curb to curb is 13 m (42.7 ft), allowing the driver two turns from lock to lock.

Brakes
The McLaren F1 features unassisted, vented and crossdrilled brake discs made by Brembo. Front size is 332 mm (13.1 in) and at the rear 305 mm (12.0 in). The calipers are all four-pot, opposed piston types, and are made of aluminium. The rear brake calipers do not feature any handbrake functionality, however there is a mechanically actuated, fist-type caliper which is computer controlled and thus serves as a handbrake.

To increase caliper stiffness the calipers are machined from one single solid piece (in contrast to the more common being bolted together from two halves). Pedal travel is slightly over one inch. Activation of the rear spoiler will allow the air pressure generated at the back of the vehicle to force air into the cooling ducts located at either end of the spoiler which become uncovered upon application of it.

Servo assisted ABS brakes were ruled out as they would imply increased mass, complexity and reduced brake feel; however at the cost of increasing the required skill of the driver.

Gordon Murray attempted to utilize carbon brakes for the McLaren F1, but found the technology not mature enough at the time; with one of the major culprits being that of a proportional relationship between brake disc temperature and friction—i.e. stopping power—thus resulting in relatively poor brake performance without an initial warm-up of the brakes prior to use. As carbon brakes have a more simplified application envelope in pure racing environments this allows for the racing edition of the machine, the McLaren F1 GTR, to feature ceramic carbon brakes.

Gearbox and miscellaneous
The standard McLaren F1 has a transverse 6-speed manual gearbox with an AP carbon triple-plate clutch contained in an aluminium housing. The second generation GTR edition has a magnesium housing. Both the standard edition and the 'McLaren F1 LM' have the following gear ratios: 3.23:1, 2.19:1, 1.71:1, 1.39:1, 1.16:1, 0.93:1, with a final drive of 2.37:1, the final gear is offset from the side of the clutch. The gearbox is proprietary and was developed by Weismann. The Torsen LSD (Limited Slip Differential) has a 40% lock.

The McLaren F1 has an aluminium flywheel that has only the dimensions and mass absolutely needed to allow the torque from the engine to be transmitted. This is done in order to decrease rotational inertia and increase responsiveness of the system, resulting in faster gear changes and better throttle feedback. This is possible due to the McLaren F1 engine lacking secondary vibrational couples and featuring a torsional vibration damper by BMW.

Interior and equipment
Standard equipment on the stock McLaren F1 includes full cabin air conditioning, a rarity on most sports cars and a system design which Murray again credited to the Honda NSX, a car he had owned and driven himself for 7 years without, according to the official McLaren F1 website, ever needing to change the AC automatic setting. Further comfort features included SeKurit electric defrost/demist windscreen and side glass, electric window lifts, remote central locking, Kenwood 10-disc CD stereo system, cabin access release for opening panels, cabin storage department, four lamp high performance headlight system, rear fog and reversing lights, courtesy lights in all compartments, map reading lights and a gold-plated Facom titanium tool kit and first aid kit (both stored in the car). In addition tailored, proprietary luggage bags specially designed to fit the vehicle's carpeted storage compartments, including a tailored golf bag, were standard equipment. Airbags are not present in the car.

All features of the McLaren F1 were according to Gordon Murray obsessed over, which included the interior. The metal plates fitted to improve aesthetics of the cockpit are claimed to be 20/1000s of an inch thick to save weight. The driver's seat of the McLaren F1 is custom fitted to the specifications desired by the customer for optimal fit and comfort; the seats are hand made from CFRP and covered in light Connolly leather. By design the F1 steering column can not be adjusted, however prior to production each customer specifies the exact preferred position of the steering wheel and thus the steering column is tailored by default to those owner settings; the same holds true for the pedals, which are not adjustable after the car has left the factory, but like the steering column the pedals are also tailored to each specific customer.

During its pre-production stage, McLaren commissioned Kenwood to create a lightweight car audio system for the car; Kenwood, between 1992 and 1998 used the McLaren F1 to promote its products in print advertisements, calendars and brochure covers. Each car audio system was especially designed to tailor to an individual's listening taste, however radio was omitted because Murray never listened to the radio.

Every standard McLaren F1 also has a modem which allows customer care to remotely fetch information from the ECU of the car in order to help aid in the event of a failure of the vehicle.

Purchase and maintenance
Only 106 cars were manufactured, 64 of which were the standard street version (F1), 5 were LMs (tuned versions), 3 were longtail roadcars (GT), 5 prototypes (XP), 28 racecars (GTR), and 1 LM prototype (XP LM). Production began in 1992 and ended in 1998. At the time of production one machine took around 3.5 months to make.

Up until 1998, when McLaren produced and sold the standard McLaren F1 models, they had a price tag of around 970 000 USD. The cars can sell for up to nearly twice that of the original price, due to the performance and exclusivity of the machine. They are expected to further increase in value over time.

McLaren M6GT, 1969

McLaren M6GT, 1969



The McLaren M6A was a racing car developed by driver Bruce McLaren and his Bruce McLaren Motor Racing team for their entry in 1967 Can-Am season. As a replacement for the team's M1Bs from 1966, the Chevrolet-powered McLaren M6A's improved design earned Bruce McLaren and his team their first of multiple Can-Am championships. After the McLaren M6A were replaced by the M8A in preparation for 1968, McLaren and technical partner Trojan developed the M6B which was sold to customers for use in Can-Am as well as other racing series.

The M6 name was later used in the development of a closed-cockpit sports car for the 24 Hours of Le Mans and known as the M6GT. The company's plan to homologate it for the FIA's Group 4 regulations was however never completed, and only a few M6GT prototypes were finished by McLaren and Trojan. Two M6GTs were later converted to road cars, one of which became Bruce McLaren's personal transport.

Development
Bruce McLaren gathered several designers to develop the McLaren M6A during the off-season in early 1967. Along with McLaren himself, Robin Herd, Gordon Coppuck, Tyler Alexander, and Don Beresford all worked on the layout of the McLaren M6A's chassis and bodywork. The car featured the first monocoque chassis constructed by McLaren, while the bodywork was specifically shaped to increase downforce suited for the Can-Am circuits. McLaren's team also expanded into engine development, creating a fuel injection system for their Chevrolet V8s. Another addition to the team was a new tire supplier, with Goodyear replacing Firestone in exchange for a testing and development program.

The first McLaren M6A was completed in spring 1967, and brought to the nearby Goodwood Circuit for testing. Bruce McLaren Motor Racing carried out over 2000 miles of testing at the circuit in preparation for the upcoming Can-Am season, tuning the car as well as gathering data for Goodyear's use. As two further McLaren M6A were completed, the team shipped the cars to North America to prepare for the opening race of the season. A final addition to the cars was a coat of orange paint. This new McLaren Orange color scheme would eventually become synonymous with Bruce McLaren and the team.

After the retirement of the McLaren M6A, McLaren entrusted Trojan with constructing duplicates which could be sold to customers. These M6Bs were nearly identical to the McLaren M6A but were sold without an engine. Several other M6Bs were also modified to fit closed-cockpit bodywork.

Racing history

The 1967 Can-Am season began in September at Road America. Bruce McLaren's M6A qualified on pole position with a new track record, while teammate Denny Hulme's car led once the race began. Although McLaren's car suffered an oil leak and failed to finish, Hulme was able to earn the car's first victory. The next two events had the team running away from the opposition, with Hulme and McLaren finishing first and second consecutively. The roles were however swapped over the next two races as it was McLaren who won on both occasions, but problems with Hulme's car allowed McLaren to take the lead in the points standings going into the final round. For the finale at the Stardust Grand Prix, problems with the Chevrolet motors led to blown engines and neither car reaching the finish. However, with their performance over the season, Bruce McLaren secured the 1967 Can-Am Challenge Cup, while Hulme was ranked second only three points behind.

As Bruce McLaren Motor Racing moved to developing the M8A, the M6Bs began to be delivered to customers for the 1968 season. Several of the McLaren M6A were also sold with Roger Penske purchasing one car for defending United States Road Racing Championship (USRRC) champion Mark Donohue. Donohue won several USRRC events that season and earned his second championship. Donohue also later won a race in Can-Am, beating the newer McLaren M8As. After the cancellation of the USRRC after 1968, the M6As and M6Bs continued to be used into the early 1970s but none were able to achieve victory against their newer competitors.

Oldsmobile Alero Concept, 1997

Oldsmobile Alero Concept, 1997




The Oldsmobile Alero was introduced in spring 1998 as a 1999 model to replace the Achieva and Cutlass. The Alero went into production on April 6, 1998. All Aleros were built in Lansing, Michigan. The Alero was Oldsmobile's last compact car as well as the last vehicle sold under the brand. Production ended on April 29, 2004.

History

The design of the Alero was originally previewed in 1997 with the Alero Alpha concept car, a futuristic V6-powered sport coupe that featured many design elements seen in the production Alero as well as some that were never meant for production.

The Alero was sold either as a 4-door sedan or as a 2-door coupé. It shared its chassis and many parts, including engines, with the Pontiac Grand Am. It was part of the GM N platform.

In 2003, the Alero's daytime running lights were changed from high-beam to low-beam.

The Alero was also sold in select European countries as the Chevrolet Alero, although only available as a sedan. The car still featured its Oldsmobile badges even though sold under the Chevrolet brand, since most European consumers would not recognize what the badge stood for. Chevrolet badges were added to the grille and rear fascia during the 2000 model year. The Toronado was sold similarly.

Alero production ended with a special Final 500 Edition. These last 500 Aleros featured custom graphics inspired by vintage Oldsmobile logos, dark cherry metallic paint, and a plate featuring the car's number out of 500.

The final Alero Final 500 Edition (#500 of 500) also happened to be the final Oldsmobile ever built, and was signed under its hood by the employees of the General Motors Lansing plant and then given to the R.E. Olds Transportation Museum.

A preview of the planned replacement for the Alero was seen in 2001 with the unveiling of the "O4" concept, designed by Bertone. The car was an open top 4-seater with European styling but some Oldsmobile traits, and powered by the latest Ecotec I4 engine. The name had multiple meanings, including "Oldsmobile 4-Seater" as well as implying the year 2004 as a planned date for production.

Unfortunately, the O4 concept was unveiled a few weeks after General Motors announced that they would be phasing out the Oldsmobile brand, meaning that production possibilities of the O4 would never see reality. Because of this, a second generation Alero was never built and the car was phased out in 2004.

Variant prototypes

General Motors commissioned the construction of Alero prototypes either for testing or to gather public opinion on possible future plans for the Alero. These variants:
  • Alero OSV - "Oldsmobile Speciality Vehicle", an experiment in an aftermarket parts brand for Oldsmobile. Featured a body kit, supercharged I4, custom interior, and special cherry red paint.
  • Alero OSV II - Another experimental vehicle, this time featuring an LX5 DOHC 3.5L V6 (used in the Oldsmobile Intrigue and Aurora and featured custom dark green paint.
  • Alero 442 - A set of show cars based on the Alero coupe fitted with a body kit similar in design to the Oldsmobile 442. Each Alero 442 show car had a unique color, including white with gold stripes and white with pink stripes.
  • Alero California - A custom built version of the Alero coupe featuring racing parts including a large rear wing, racing seats, sport tires, and custom graphics painted in brown and yellow.
  • Alero Convertible - An experiment in the possibility of creating an Alero with a convertible soft top to help broaden the appeal of the car to young buyers. The Oldsmobile O4 concept also hinted that the next generation Alero could have had a convertible model.
  • Alero Pace Car - Built by General Motors as part of their fleet of Oldsmobile safety cars for the Indy Racing League, featuring custom yellow and white checkered flag graphics.