if both are stock, i would say the e30 looks better than e36 as far as m3 goes (I like e36 m3 better with some wheels, lights, etc). non m3 e36 looks better to me, being more streamlined and sporty looking. IDK, I wish I had both, because both are great in different ways. e36 is easier to find in good condition for a price that I can afford (not much), so thats why I got it.