Powertrain

The D3 Bi-Turbo’s underpinnings are provided by a BMW 2.0-litre, four-cylinder, turbo-charged diesel engine with an aluminium block. A Bosch common rail high-pressure injection system running at 2,000 bar and utilising Piezo injectors ensures maximum efficiency.

Two turbochargers of different sizes force-feed the engine. The smaller of the two provides boost from tick-over and helps the four-cylinder yield an impressive 400Nm (295lb-ft) of torque at 1500rpm, reaching a peak torque of 450Nm (332lb-ft) at a mere 2000rpm. The larger turbocharger is fully engaged from approximately 3000rpm onwards, enabling the engine to reach a peak performance of 214hp.

Extensive development work and thousands' of miles of testing have resulted in optimised turbo charger and fuel injection system mapping. The new D3 Bi-Turbo unit revs freely up to 5200rpm, while most diesel aggregates today don't even contemplate going past 4500rpm.

The exceptionally smooth power delivery can be further enhanced with the optional ALPINA SWITCH-TRONIC automatic transmission, providing the freedom of manually selecting gears utilising buttons on the back of the steering wheel.