Quote Originally Posted by quicksylver
Unless you do a 5-lug conversion(pretty expensive) you're kinda limited on wheels, there are sometimes good looking stuff on ebay...other than that you're shit out of luck....Nice car BTW... if its got an open diff, i'de change it, a little suspension work and that may be it...my boy just finished his 5-lug conversion on a 91 325is, we dropped an S50 eng in there too, little shit moves...there's a lot you can do, just depends on the pockets and if you feel the car is worth putting all that money into it....good luck! here is my boys car.
5 Lug conversion is a bling mod. It is pointless and stupid. What does it give you? A better choice of wheels that are too big for the car?

The car will handle better on 15s than it will on 17s. 225.50.15 in either an Azenis 615 or Hankook zz2 is what you need and all you need. Rims that fit this size tires are plentiful. In fact I have one set on my e30 now and another set in my garage. 16s are even just a touch too bi but not too bad.

and while your boys car does look decent. The wheels look way too big and it is jacked up now... 15s on a slammed e30 with 225 tires tucked is the way to go if you are going for looks.

If you are going for performance then 15s with 225s and a decent spring/shock combo with some upgraded sways and replace all the bushings so they are fresh is the way to go.

Cliff Notes:

5 Lug swap on e30 is for bling. There is no real benefit.