Everyone asks me how I do it.. and I just do it slowly and carefully. So far my rockers are all in perfect shape and still haven't touched pavement(knock on wood). The pan itself on the VR6 is normally the lowest point but hockey pucks underneath the stock motor mounts raise the motor about an inch, which tucks it at the same height as the subframe... helps a lot in case I happen to kiss pavement on a big bump.
The inclines are somewhat tricky, and I try to avoid them as much as possible. But, taking most entrances and inclines at an acute angle helps a bunch. Speed bumps I avoid all together, if I happen to meet a speed bump, I'll stop traffic to turn around if I have to.. fuck that. I'll go as slow as I need over stuff like that so people behind me have to yield since I'm in front and they can get as pissed as they like, I don't care.
Honestly, I think being as low as I am is what makes the car fun, and that's why I do it. Some people enjoy fast cars, while I enjoy trying to get around town in a car that's nearly impossibly low. If I have to drive to an area I don't know, it's a little nerve wracking. If you put a map in front of me right now, I could mark out just about any pothole, divot, crown in the road, or bump that I have memorized.