Well all i can say is after running the TRF502X for a season is that its a brill car to run, easy to set up and race. I run TRF cars in both 2wd and 4wd. Very reliable cars and there's lots of guys on here who always offer lots of help and advice when someone purchases a new TRF car and wants some help with it.
www.trfracing.co.uk is a great website where you get Lee Martins set ups and so on.
Scotty....