Optics: Despite the camouflage, the XM could be based on the 7 and X7
Motorisation: plug-in hybrid for the new M-BMW
Driving: You don’t notice the 2.7 tons of the BMW
The mighty 4.4-liter has power in abundance and sounds, especially in Sport mode, exactly as you would expect from an M: pounding, brutal, just V8. When shifting, it jerks from time to time rough, since the eight-speed automatic machine has obviously lacked the finishing touches so far. But otherwise? All very impressive.