tayyab....
I would recommend you look for the Revell Turner series and F1 Drifting models for parts. I know for a fact the the F1 Drifting models comes with a lot of cool parts like the over-fenders, turbo intercooler, wings, and more.
now...if you mess up on your stock body...just sand it down, prime it, and paint it BLACK. BLACK fixs everything....