The BPM engines have a classic 90° V architecture for the 8 cylinders, 60° for the 12 with a variable power from 340 to 750 HP. Aluminum block with valve seats and guides; distribution with camshaft controlled by 2 chains and rods and rockers. Mechanical feeding with double body carburetors. Classic architecture for minimal and very simple maintenance thanks to the absence of electronics, but with technical characteristics such as a weight (dry without inverter) of 550 kg compared to a power of 750 HP with a torque of 1.099 Nm for a displacement of 11.974 cm³ and a number of revolutions never higher than 4800.