Currently, if you slide into a sand pit, you will just grind to a stop. In real life, on the contrary, you would dig into the sand and once you have dug in enough to not move more, the remaining momentum would cause the car to roll. Would be nice if this could be improved upon. Any thoughts?

+1 though you can already flip things quite easily

+1
I think that this could be easily solved by increasing lateral tyre vs gravel resistance...