Car Series with Different Faces

S1, E6: Audi A3, BMW 5 Series and Mercedes CLS have been bestsellers for years. In order to attract even more buyers and close the niches between the different vehicle classes, manufacturers extend their model series every so often: Proven technology under the bonnet, but a redesigned body. The results are cars between two worlds such as A3 Sedan, 5 Series Gran Turismo and CLS Shooting Brake.