I drove a truck around a bit, then ran off a sharp turn straight into a lake. I drove a tow truck over and hauled it out, then flipped it back. I tried driving it back but the truck turned left whenever I tried going straight, so I gave up and started towing it back. I flipped both the tow truck and the truck making a wide turn on a shallow grade into a ditch.
I restarted the game, picked a nice slow street car, and managed a quadruple rollover on a perfectly flat stretch of land. I landed upside down and had to get another car. Finally, I get it out to the boat I wanted to carry it on. I drive it on, and it looks like the car is about to fall straight through the boat, but it doesn't. I can sort of drive it around on the deck, if I ignore the fact that the car is driving around on it's front bumper with the rear wheels up in the air. I get out so that I can take my car out to sea, and fall straight through the boat.
After dealing with the roads that just didn't match up, the fact that I could jump 2 inches off the ground, and cars that could drive up hills but not 1 inch high obstructions in the roads even when I'm aproaching them at 70mph, and when I do get over them I flip a hundred times, I gave up and uninstalled it. It was fun for a while but eventually all the annoyances in the game caught up with me and I quit.