i wouldnt' drive on gravel roads but if its just a driveway i wont drive on it either.
i dont like dirty tires.
but you can get some 3M cleabra for the rocker and quarter..should be fine paint wise.
www.autopaintguard.com has pre-cut ones if you want to check them out.
amazon has rolls too. i just did a roll on my Z. going to redo it soon as i have enough stains and impact prints on them already.