The sum of all parts.

High Precision Injection and Twin Turbo
in the BMW 740i, 750i and 760i.

Two milligrams of petrol – that's how precisely the High Precision Injection (HPI) controls the fuel-air mix. The right dosage of injected fuel is meticulously ensured by the piezo injectors, with only part of the combustion chamber being filled under lower partial loads. Thanks to the Twin Turbo, it is now possible for the straight six-cylinder engine to provide a supreme standard of power and performance previously only conceivable with far larger engines. Engine weight is also much lower, in part on account of the all-aluminium crankcase, which naturally benefits the agility of the entire car and offers more power on less fuel.