How can you put 16" tyres on 15" wheels, everybody knows that'll never happen. By the way, I absolutely adore the car, especially European models, which aren't fiddled with in order to pass American legislation. Greetz to all M'ers.
The best pictures I've seen: http://seriouswheels.com/cars/top-1988-BMW-e30-M3-Photography-by-Webb-Bland.htm