Do tell. a AWD vert is very unusual if its even possible. Not sure it would be worth the work either. So, either its a 325ix with the roof cut off or its a vert with a 325ix chassis.
E30's have 4X100 bolt patterns unless its a M3. Rim size ranges from 14-15 stock and 15-16 maybe 17's in the aftermarket area. Depending on offset and fender fitment you could run into problems.