Vehicle Component

i am working on a car game and from the start started having problems because it’s my first time with vehicles and searched for 2 days for tutorials and in the forum but didn’t get anywhere.
So, my problem is that i’ve tried to many values in the vehicle movement and in vehicle wheel details but i am not getting the desired result.
Can anyone post me some values he worked on or a tutorial on how to do it!?
(I am looking for racing cars programming)