Car Physics Unity Github
Look for repos that separate Input from Physics . Good repos will have a VehicleController class that reads inputs (WASD) and passes them to a VehiclePhysics class. This makes it easier to swap the car from player control to
"Realistic Car Physics in Unity: A Study on Accuracy and Performance" car physics unity github
Here are some great repositories on GitHub, ranging from simple to realistic: Look for repos that separate Input from Physics