Gb Muthu 5pts BMW for its existing line up of cars seems to be committed to the 50/50 weight distribution and the RWD layout. It will therefore never do a cab-forward, FWD layout which are absolutely necessary to liberate meaningful space at the rear of cars as small as the 1 series. Design engineers will question the need for putting dedicated doors at the rear for space that trivial. There is the 5 door 1 series hatch but a sedan?! I therefore doubt that there would ever be a 1 series 4 door sedan in the existing lineup. A coup sedan of course we already .