The Mercedes-Benz SLR McLaren is an Anglo-German supercar jointly developed by Mercedes-Benz and McLaren Automotive, built in Portsmouth and the McLaren Technology Centre in Woking, Surrey, England. Daimler AG, owner of Mercedes-Benz, also owns 40% of the McLaren Group.

SLR stands for "Sport, Leicht, Rennsport" (sport, light, racing). Mercedes-Benz has stated that they will build 3500 SLRs in a span of 7 years, with an annual production of 500 cars. The car's base price is GB £300,000 (approx. US$495,000 or €346,000, c. 2009). 

Performance

The SLR sports a 232 kg (511 lb) hand-built 5.4 L (5439 cc, 332 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 compressed air is then cooled via two intercoolers. The engine generates a maximum power of 626 PS (617 hp/460 kW)@6500rpm and maximum torque of 780 N·m (575 lb·ft)@3250-5000rpm.