All videos for the BMW 4er-Reihe 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 4er-Reihe F32/F33/F36/F82/F83 420i Gran Coupe M Sport xDrive Steptronic costs new 57390 €. From 0 to 100 km/h it accelerates in :car_offers-model-tech_spec-electric_engine-acceleration_0_100 seconds . His top speed is 231 km/h.