Its a good idea to set the ability range to around 10-15 as well as raising performance and bhp levels. You can also edit the cc and track grip values by modifying the magic data. Use the cmagic editor and notepad. Set car power to team dependant in gp3edit as well. Use the physics editor to alter the performance of the car, some changes also affect the cc Everything you need is on this site, did I say backup? get going.