<P> Under the body, the car has shed 398 kg (877 lb) and reduced its dry weight to 1,300 kg (2,900 lb). The engine remains in relatively stock specification but now produces 690 PS (510 kW; 680 hp) and 868 N ⋅ m (640 lb ⋅ ft) at 1.75 bar (175 kPa) boost . Inside, the car is stripped out with only the essential functions being available, controlled from a carbon fibre binnacle . New carbon fibre door panels and full roll cage complete the transformation . </P> <P> Renntech announced 21 SLR McLaren 722 GT would be available to the North American market exclusively through RENNtech . </P> <P> Named after the British racing driver of the same name, the SLR Stirling Moss is a limited edition (75 vehicles) of the series, which uses a speedster styling that does not include roof or windscreen . The design is inspired by the 300 SLR race car, and the exterior was designed by Korean designer Yoon Il - hun, the interior by Dutch designer Sarkis Benliyan . It was to be the last series of the McLaren SLR built under the partnership between Mercedes - Benz and McLaren, until McLaren announced their own final edition of the SLR in late 2010 . </P> <P> The supercharged V8 engine is rated 650 PS (480 kW; 640 hp). The car's top speed is 350 km / h (220 mph) with acceleration from 0 to 100 km / h in less than 3.5 seconds . The car is approximately 200 kg (440 lb) lighter than the regular model . </P>

How many mercedes slr stirling moss were made