Win a dashcam

Team McLaren built this car in association with Autodelta early in 1970 to accept one of their Alfa Romeo T33 V8 engines.

The new chassis followed the two year old M7 series design but was two inches longer.

The M7D was commissioned by Alfa Romeo's Autodelta competition department and was powered by a 3.0 litre V8 engine from Alfa Romeo's T33 sports car. The engine is variously cited as producing peak power of between 410 bhp (306 kW) and 430 bhp (321 kW) (the highest figure said to be produced at 10,500 rpm), with good levels of torque, but McLaren found that performance varied significantly between units. To accommodate the engine, the wheelbase was lengthened to 96 inches (2,400 mm) and a new mounting point was created for the alternator which, unlike on the DFV, was not integrated with the engine. One was made, although it is unclear whether this was a new chassis or a rebuilding of the M7B chassis.