This exotic $500,000 McLaren SLR 722 Edition is up for auction on eBay. Its design is a homage by Mercedes-Benz to the unforgettable victory won by the British racing legend Stirling Moss and his co-driver Denis Jenkinson in a Mercedes-Benz 300 SLR with the starting number 722 (indicating a start time of 7.22 a.m.) at the Mille Miglia in 1955. With an output of 478 kW/650 hp and a corresponding performance, the 722 Edition has all the attributes of a thoroughbred racing car.