e30 M3s?
If you are considering an m3 I'd at least go with a later e36 or up.
Go drive a nice s4 and then go drive a nice e30 and you'll see what I mean

 

My ex girl friends brother first had a e30, then he got an e36. Sure the e36 was alot "smoother", but I kinda liked the ruggedness of the e30...idk the whole m3 is just a thought...to be 100% honest, I don't thing I'll ever drive a car that's not AWD again haha.

 

out of all of them... I dont mean to shy you off to the S4, but you should really get the Impreza 2.5rs. The engine isnt turbo'd, but man, it's practically bulletproof. If you're looking to mod it, there's options out there, and its a great car.
I've been fortunate enough to have found a GEM of an S4, so that it's practically brand new, giving me the option of treating it well, in hopes that it will return the favor --- and it has. So I plan to treat it even better by blasting the power up with an RS6 project.

Do make the wise decision. If you dont have the money to blow, dont do it.

 

i see mikeyb3's point.. but i dont agree.. if you are not 100% happy with the car you have purchased or its performance capabilities, i wouldnt go with it.. again, every time i drive my s4, im happy, and i dont even think of the money or time that i have put in it.. it makes me smile. if you have that kind of money to play with, id find something that will make you grin every time you hit the accelerator or find some patch of twisty highway.. that is why you are on this forum? right? are you on the subie 2.5 rs forum as well?? i have over 10 grand in mine and the number keeps climbing.. getting ready to install a 600$ clutch.. then intercoolers.. then bigger turbos.. but im always smiling... ; )