yea, the first one is the M1, the second one is the 635csl and the last one is obviously the coupe.
did you know the M1 was infact was a the first M car bmw ever made? also that it was a big flop? it was too expensive and no one bought it
the commong thing about all three cars is the fact that they are all coupe and are all Ms
however, my favourite M car of ALL time is NOT the one i currently own. its the original M3!!!! the E30 M3. oh i love that car! even 18 year old car, yet that car is absolutely fantastic to drive. its just too good!!