I think it would be cool, don't know how hard to implement, to be able to add any part on any car. Like the Moonhawk with off road Gravil D-series suspension, or a Miramar with drag radials and a supercharged V8.
Check out this thread, is this what you mean? http://www.beamng.com/threads/my-dream-for-beamng-more-modular-car.26430/
somebody has made the Miramar with the supercharged v8 and 5 lug spindles so the drag tyres work with it.
