I found with cars that have a low front clearance, a sharp angle into the driveway works very well to avoid scrapes. I've had several low cars (mostly sports cars) with far less clearance than the Volt and find that a 45* angle at minimum is required. The lowest car I had rode about 2" and learned to pull nearly parallel with the driveway before cutting hard to pull in and practicing nearly the same technique as soon as my rear tires hit the bottom of the driveway when coming out.