Ok, explain something to me.........I thought that the even numbered cars would come with two doors, and the odd numbered cars would become the four doors.......so that the 6 series were coupes based off of the five series sedan.. . . the Z8 was the coupe to compliment the 7 series (kinda)....

I dont know where I got all of that from, but does this mean that there will be five different series of four door BMW's????! 1,3,5,6,7????

That seems like overkill to me