Volkswagen's VR6 engine Most famous in the R32 model.
This is a GM 6046 two-stroke twin diesel engine as used in the M4A2 variant of Sherman.
This engine was made up of two General Motors 6-71 inline six diesel engines, for a total displacement of 13.9 liters (850 cu in). It produced 410 hp, while max torque was 1,350 Nm (1,000 ft-lb) at 1,400 rpm.
With this setup, M4A2 Shermans had the benefit of being able to run on a single engine in emergencies if one was damaged. It was also used in M10s based on the M4A2 chassis.
Production of Shermans with the 6046 began in 1942, and were mainly used by Britain and the USSR. Some were used by the US Marines.
It is often thought that Allied tanks did not use diesel, in reality, the US produced 11,000 diesel-powered M4A2s.