How do I create better collisions with the built in car behavior?

I setup a simple project with the construct car behavior. It runs pretty decent, especially for the effort. My problem comes when trying to have other cars and collisions. If you bump a car, even at slow speed the cars bounce very erratic / not realistic at all.

I had them setup with just the solid behavior. Since this post I have moved to physics based and much better results. I just need to work out how to get better handing / drifting :)

https://tmgbr.netlify.com/