Performance born out of precision.

High Precision Injection and Twin Turbo
in the BMW ActiveHybrid X6.

Two milligrams of petrol – that's how precise the High Precision Injection (HPI) controls the fuel-air mix. The dosage of the fuel injected is precisely ensured by the piezo injectors with only part of the combustion chamber being filled under lower partial loads. Thanks to the Twin Turbo with Twin Scroll turbochargers, it is now possible to provide a supreme standard of power and performance previously only conceivable with far larger engines. Engine weight is also much lower with fewer parts and reduced internal friction which offers more power on less fuel.