stock motor or built it still can get away from him no matter what. My 88 GT which I bought in 10/87 and then about 6 months later my brother who was 9 years younger then me, about 18 years old I think. Borrowed it one night with out me knowing, spun out on the interstate and the only good part of the car was I believe the pass door or the drivers door but that was it, oh yeah and the roof. It spun from one cement guardian to the opposite side and then some. I believe no matter which way you go it can be dangerous, its up to him to show respect and responsibilty to the car and its potential to kill him or others. good luck