Man i wish i had that kind of money to spend in hs. i drove a beat up old jeep until i saved enought to get a mustang. if you don't care about insurance (b/c all those cars are going to be expensive to insure for such a young driver) to be honest if you want great cornering and kick ass fun get the M3. if you want nice interior and good straight away speed get the S4. if you want just throw you back in your seat straight away power get the mustang. chicks dig all those cars so pick the one with the bigger back seat. you can't go wrong with any of them. but if i were you i'd get the M3. blk. good luck and have fun.