I have some settings that work with any car. I used these to make a Viper go 230 in 5th gear! It's a 6 speed if you don't know that. That's pretty quick
Follow these settings 1. Buy all the racing parts R transmission, Full Costomizable suspension, and the TCS controller and the other 50,000 dollar upgrade.
2. Put Spring settings down all the way and also put ride height down all the way.
3. Open up every gear and put down the Final gear all the way. Put auto settings up all the way.
4. Put the Tcs controller down all the way and the other one you bought down all the way.
5. Make sure after every time you change a setting that you hit x and not box or triangle. If you hit box or triangle you will make no change they will go back the way they were.
That's it these should work if not let me know and if you find something better let me know