Mercedes-Benz SLR McLaren

Mercedes-Benz SLR McLaren

The Mercedes-Benz SLR McLaren is an Anglo-German grand tourer car jointly developed by Mercedes-Benz and McLaren Automotive, built in Portsmouth and the Mercedes-Benz SLR McLaren Technology Centre in Woking, Surrey, England and sold from 2003 to 2009. When it was developed, Mercedes-Benz SLR McLaren owned 40 percent of the McLaren Group.

In Mercedes-Benz SLR McLaren automatic gear box, front mid-engined arrangement, and its driving characteristics, some commentators classify the Mercedes-Benz SLR McLaren as a GT, whose rivals would be vehicles such as the Aston Martin DBS V12 and Ferrari 599 GTB Fiorano.
Mercedes-Benz SLR McLaren stands for "Sport, Leicht, Rennsport" (sport, light, racing). Mercedes-Benz SLR McLaren stated that they would build 3,500 SLRs over seven years, with an annual production of 500 cars.The Mercedes-Benz SLR McLaren car's base price, GB£295,337 (approx. US$450,000, €350,000, CHF 500,000 or C$ 500,000. 2009),Mercedes-Benz SLR McLaren made it the ninth most expensive street-legal car in the year 2008.
The Mercedes-Benz SLR McLaren features Sensotronic, a type of brake-by-wire system.The brake discs are carbon-ceramic and provide better stopping power and fade resistance than steel discs when operating under ideal working temperature. Mercedes-Benz SLR McLaren claims these discs are fade resistant to 1,200 °C (2,200 °F). The front discs are internally vented and 370 mm (15 in) in diameter. 8 piston calipers are used. Mercedes-Benz SLR McLaren improve braking performance there is an automatic air brake, when engaged the rear elevation angle of the rear spoiler is set to 65 degrees. The additional rear downforce in addition to the markedly increased aerodynamic drag increases peak deceleration ~90%

Mercedes-Benz SLR McLaren

The Mercedes-Benz SLR McLaren brakes have been strongly criticized by such review sources as Top Gear due to lacking modulation and having an on-off operation. This is due to road cars not regularly reaching normal operating temperature for ceramic discs in stop-go traffic conditions.
Mercedes-Benz SLR McLaren (15 in 722 edition), when demanded via the driver's switch, the elevation can be increased to 30 degrees (35 in 722 version) for increased rear downforce, at the cost of increased steady state drag, also when the driver applies the brakes the spoiler raises.
The Mercedes-Benz SLR McLaren sports a 232 kg (510 lb) hand-built 5,439 cc (5.439 L; 331.9 cu in), supercharged, all-aluminium, SOHC V8 engine. The cylinders are angled at 90 degrees with three valves per cylinder and lubricated via a dry sump system. The compression ratio is 8.8:1 and the bore and stroke is 97 millimetre (3.82 in) and 92 millimeters (3.62 in), respectively. The Lysholm-type twin-screw supercharger rotates at 23000 revolutions per minute and produces 0.9 bar (13 psi) of boost. The Mercedes-Benz SLR McLaren compressed air is then cooled via two intercoolers. The Mercedes-Benz SLR McLaren engine generates a maximum power of 626 PS (460 kW; 617 hp)@6500rpm and maximum torque of 780 N·m (580 lb·ft)@3250-5000rpm.
Unlike most of its contemporaries, its engine is front-mid mounted. Mercedes-Benz SLR McLarentook the original concept car designed by Mercedes and moved the engine 1 metre (39.4 in) behind the front bumper, and around 50 centimetres (19.7 in) behind the front axle. Mercedes-Benz SLR McLaren also optimized the design of the center firewall.
The Mercedes-Benz SLR McLaren sports a 232 kg (510 lb) hand-built 5,439 cc (5.439 L; 331.9 cu in), supercharged, all-aluminium, SOHC V8 engine. The cylinders are angled at 90 degrees with three valves per cylinder and lubricated via a dry sump system. The Mercedes-Benz SLR McLaren compression ratio is 8.8:1 and the bore and stroke is 97 millimetre (3.82 in) and 92 millimeters (3.62 in), respectively. The Mercedes-Benz SLR McLaren Lysholm-type twin-screw supercharger rotates at 23000 revolutions per minute and produces 0.9 bar (13 psi) of boost. The Mercedes-Benz SLR McLaren compressed air is then cooled via two intercoolers. The Mercedes-Benz SLR McLaren engine generates a maximum power of 626 PS (460 kW; 617 hp)@6500rpm and maximum torque of 780 N·m (580 lb·ft)@3250-5000rpm.

Mercedes-Benz SLR McLaren

Unlike most of its contemporaries, its engine is front-mid mounted. Mercedes-Benz SLR McLaren took the original concept car designed by Mercedes and moved the engine 1 metre (39.4 in) behind the front bumper, and around 50 centimetres (19.7 in) behind the front axle. Mercedes-Benz SLR McLaren also optimized the design of the center firewall.The Mercedes-Benz SLR McLaren uses AMG SPEEDSHIFT R5-speed automatic transmission with 3 manual modes. For durability Mercedes-Benz SLR McLaren selected a 5-speed transmission rather than their 7-speed gearbox which was more complex and used more parts.
Mercedes-Benz SLR McLaren car uses carbon fibre for its entire body construction in an attempt to keep the weight low. Despite CFRP materials the total curb weight is 1,750 kg (3,858 lb).Car and Driver achieved a 0-60 mph (100 km/h) time of 3.4 seconds, and a quarter-mile time of 11.2 seconds at 130 mph (209 km/h) C&D suggests the times may be even lower if temperatures were lower. Motor Trend tested the Mercedes-Benz SLR McLaren and achieved a 0-60 mph time of 3.3 seconds in April 2006. Mercedes-Benz SLR McLaren Car and Driver achieved top gear acceleration 30-50 mph and 50-70 mph times of 1.7 and 2.4 seconds, which are the fastest ever recorded by the magazine in a production car. The Mercedes-Benz SLR McLaren also pulled 1.13 g on the skidpad.
Mercedes-Benz SLR McLaren Road and Track tested the car in their July 2005 Road Test and reached 60 mph (97 km/h) from a standstill in 3.5 seconds. Mercedes-Benz SLR McLaren 0 - 100 mph (160 km/h) sprint was achieved in 7.5 seconds and a quarter mile run was completed in 11.5 seconds at 126 mph (203 km/h).
In June 2004 the Mercedes-Benz SLR McLaren was tested at Nardo and performed the 0-100 km/h (62 mph) exercise in 3.2 seconds, 0-200 km/h (124 mph) in 9.6 seconds and 0-300 km/h (190 mph) in 24.8 seconds.Their 400 m (0.25 mi) time of 11.0 seconds at 133 mph (214 km/h) and 1 km (0.62 mi) time of 19.2 seconds at 282 km/h (175 mph) respectively. They also broke its claimed top speed of 334 km/h by reaching 339 km/h (211 mph).

 COURTESY BY http://en.wikipedia.org/wiki/Mercedes-Benz_SLR_McLaren