Specs from the just revealed X3 M and X4 M (
see Official Thread)
S58 Engine
473 HP (X3 M standard model) from 6250-7200 RPM
503 HP (X3 M Competition model) from 6250-7200 RPM
442 LB-FT torque from 2600-5600 RPM (X3 M standard model) and 2600-5950 RPM (X3 M Competition model)
Forged crankshaft
7200 RPM redline
Closed deck design
Wire-arc sprayed-on iron coating for cylinder walls
3D printing technology cuts weight of cylinder heads
Two mono-scroll turbochargers
350 bar maximum fuel injection pressure
Valvetronic and Double-VANOS variable camshaft timing
Cooling
One large central radiator and two smaller radiators sides
Engine oil cooler and a separate transmission oil cooler
Lightweight oil sump has two separate chambers and an integrated suction channel
