William,
It was the standard "narrow" RCR MK1 body with 10" rear wheels and 26.5X 9.5 X 15
Hoosier tires.( 225/50/15 fronts on 8" wheels)
It was primarilly a track car
but saw its fair share of street miles as well.
It had a ex- NASCAR dry sump engien that made 670hp and also had a ZF gearbox.
Let me know if you have any other questions.