Tamiya 1/24 Benz SLR McLaren 722 Edition CarDescription The Premium SportscarThe 1955 Mille Miglia saw the Mercedes Benz 300 SLR won the fastest victory in the history of the event. The machine featured the car number 722, which was incorporated into the name of the Mercedes Benz SLR McLaren 722 Edition supercar announced at the 2006 Paris Motor Show. A 5. 5 liter supercharged V8 engine was fitted to the SLRs long nose short deck body design. Output from the engine was increased from 626hp to