Mercedes started the whole four door coupé class, which is basically saying a car has four doors but has the dynamic styling of a coupe. The CLS, the Audi A7, and now the CLA all are four door coupés. They have very sleek and sloping back-ends, almost making the black glass look as if it disappears into the trunk lid. I think it is a great idea and the A7 and now the CLA have amazing proportions compared to other cars - in my opinion. So no mistake on Mercedes' part, just some terminology everyone will have to get used to!Seems like Mercedes is doing slow releases of this stuff. I noticed the coupe thing too! Very weird.