All videos for the BMW Z4 with driving report, buying advice, long term test and 0-100km/h acceleration test. These facts you should know before you buy or lease the car..This BMW Z4 G29 Roadster sDrive20i M Sport Steptronic Sport costs new 60930 €. It accelerates from 0 to 100 km/h in :car_offers-model-tech_spec-electric_engine-acceleration_0_100 seconds. At 240 km/h he reaches his top speed.