How do I make an actual steering car with suspension?

I have tested quite a bit with suspension and have not found any good ways to do it. Please explain to me what some good ideas/ways are.

You would need to add some fake wheels onto the car that are in the proper angle, and detect when the Steer value is either 1, 0, or -1. I do not know much about this, all I know is there is no simple script to determine turns that are more precise (Ex: 10% of the max turn).