A measured response.

High Precision Injection and turbo charger in the BMW TwinPower Turbo.

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. For the first time, the supply of fresh air is controlled in the new BMW Gran Turismo by Valvetronic. Thanks to the Twin Scrool Turbo, it is now possible for the straight six-cylinder engine in The new BMW Gran Turismo to provide a supreme standard of power and performance previously only conceivable with far larger engines.