1 series of BMW is a variety of subcompact executive cars that are being produced from 2004. Series were created as a replacement for 3 Series Compact. First generation of these models were produced as a 2, 3 or 5 door hatchbacks, coupes or convertibles but since the second generation coupe and convertible models weren‘t manufactured under the name of 1 series, but 2 series had models with these two body types so BMW 2 series cars could be called as a succesor of 1 series. Sedan model was introduced in 2017 but it is only being sold in China.