I did some hillclimbs locally a bunch of years back, raced up Mt. Ascutney, part of the New England Hillclimb Association. Great fun, great people. Had Dan Rutan in the group too.
Ironically, I used a European car, my DD Audi 4000s. 
IMiss my 4KQ. Neighbours house burned down and it scorched the shell beyond repair. I found another one with a blown motor for $200 and started swappping all my stuff (turbo conversion, delrin bushings etc) before it was stolen

I had almost 275 bhp at the wheels... First gear was waaaay to short though.