Ed,
I have turned the wheels on my cars both while stationary and while moving in the garage and haven't damaged the tiles any. I won't say you can't do it, but so far I haven't had any problem. I have to jockey my Torino Cobra around the kwick lift ramp with the Cobra on it every time I take it out or put it back in the garage and it is a big block with a lot of weight. I have also used the car-jacks that I have to lift the rear wheels and roll the car around on them with no problem. I am sure that if you tried you could damage the tiles but I have always been careful with my cars and things anyway. I did get some extra tiles of each color just in case and as I said I did change one of them but the one that had the little grove in it I kept as no one else even noticed it and I wanted to see how easy it was to get to one that was a little ways out in the floor. I have been very happy with them so far.
Ron
