This "gran coupe" thing is really stupid. It's either a two door coupe or it's a four door sedan. All the even numbers are suppose to be "coupes", but why have a 4 door coupe? Why not just make the M6 a two door coupe and an M7 a four door "gran coupe"(SEDAN).
Gran Coupe with four doors is like having a Mini Sedan with two doors, I don't get the point.
It's "sleeker" bla bla.