It was fun getting quickly to new locations I've never seen before!
1. As already stated they are quite overpowered. I'm wondering if they will have a damage model? If you'd drive over a zombie full speed the mass would definitely damage a car. Now they also change the gameplay completely as you clear whole areas just by driving over zombies until they are all dead and it's a bit silly. For zomboid difficulty the cars should break easy in my opinion, perhaps more speed -> more damage to the car.
2. I crashed the car couple times and I though oh sh* now I injured myself. I would love to see some broken bones and pay for my mistakes!