As has already been stated the very first M3 was a sedan. The 'tradition' and 'heritage' of the M3 badge will not be lost because there will still be an M3 for you to buy if you wish. If you want a coupe then get the M4. If it really concerns you that no one will have heard of your 'M4' when you mention it at work then you are just a badge whore. All true enthusiasts buy cars because of the way they drive and make you feel - the name of the car is irrelevant. I think i'll have an M3 please.