I plan to buy an SL350 or SL500 r230 or 231. Approach to my garage has a steep ramp. I know ABC let's you increase the ride height, but can à car without ABC do the same trick? Seems not many recent SL's have ABC, though some have air suspension and some have Sport suspension. Anyone know the permutations that avoid shaving the chin? I imagine some speed bumps raise the same issue. Thanks all.