The engine comes in two petrol-fuelled versions: the sDrive201 has a classic, 4-cylinder, 2-litre, 197Cv engine at 320Nm, acceleration from 0 to 100 in 6.6” and a consumption of between 6.0 and 6.1 l/100 km with a maximum speed of 240kh/m. The sDrive30i, on the other hand, has a 4-cylinder, 286Cv engine with a torque of 400 Nm and acceleration from 0 to 100 km/h in 5.4 seconds and a maximum top speed of 250 km/h. The top model, the Z4 M40i, however, has 6, 3-litre, in-line cylinders, Twin Power Turbo, 340 Cv, 500 Nm, with M Performance Twin Power Turbo technology offering a top speed of 250km/h and acceleration from 0 to 100 in 4.5”. All the engines have particulate filters and are Euro 6d-Temp approved. Three driving modes can be selected: Comfort, Sport or Sport+ that impact the engine, transmission and electronic set-up. To avoid pitching and rolling, the vehicle has optimized suspensions: the front is fitted with McPherson struts while the back has a five-rod Multilink. Moreover, there is a self-blocking differential on the back.