The BMW M12/13 powered Nelson Piquet to his second World Drivers' Championship behind the wheel of the 1983 BT52 and, to this day, it remains the most powerful engine ever used in Formula One.

The M12 was powered by the earliest version of BMW's M70 engine, the M70B50, which it shared with other BMW models (the 7 Series and 8 Series), as well as Alpina's B12 5.0. Another engine from the ...