this is the beginning series. You won't find a car in the dealership...check out this list http://www.mygranturismo.net/carlist.php?country=Japan&max_year=1979
and see if any of these cars pop up in the used car dealership that has decent horsepower to weight ratio --- Looking to trade cars with me? Check out my garage below: http://www.mygranturismo.net/7925
I think I used either the Dome Zero Concept 78 or the 240ZG 71. The Dome is a terrible car to drive but it will easily win the event. You can win it in the Supercar Nastalgia cup Amateur series A spec or buy it but it's an expensive car.
Any of the old Z cars should do, just check the used car lot. --- In the end, it's not going to matter how many breaths you took, but how many moments took your breath away.