I'm going to try and keep my car low on fuel when i park it... not sure if thats a good idea or not but i will run a little bit of stabil in it when the day comes.
I have Car dolly's that are curved so the tire kind of sits down in them, that keeps them off the concrete and distributes the weight a little bit i think. Doesn't really bother me cuz i have an extra set of wheels to store it on