From E30 Zone Wiki
Has two doors. Very often referred to as a Coupe, even though it's not.
Has two more. Very often referred to as a Donor (for parts, due to it's undesirability). Also affectionately known as a Moredoor.
Autohaus Kohl in Aachen, in collaboration with Baur, produced four examples of a true Coupe, three of which are still in existence. The body shell is dominated by the enormous rear window.