The E28 M535i's are grey market only, so there are some issues, though minor. They have the standard 3.4 L single cam engine as in other 535is. Some have the euro tuned 3.5 with 218 hp, but little tuning support, others have the american tuned 3.4, shich can be chipped. This is what I have for sale too! $5000 with 225K miles, many upgrades, including 17" E39 wheels, plus stock unique to M535 set plus snows. Im in the market for a new(old) car and i was wondering if M5.35's are more rare than e28 M5's, and less expensive hopefully?