I have driven a Nissan sentra in, it's not bad. There are a few spots that I could see being slightly washed out over time which could eventually give cars a harder time. Cars should be ok, I say should because I havent been there in about 6-8months but for the last 4 yrs its been fine. Just don't rally it and puncture a hole in your oil pan....Or ride in with someone so you can look over the road on your way in and make your own determination for next time.