Cannot believe I have missed this thread...!
As uncle Dunc said a few pages back, I went from an R33 with 255rwkw to an MX5 with 94rwkw.
only managed a 1.13.01 around wakie in the R33 (I think also as I had no idea how to drive back then) to a 1.11.8 in the Mx5. best at EC is a 1.56 on the old layout and 1.05.5 around the south cct.
its fun, there is the MX5 cup, super TT and FoSC which the car can race in. plenty of opportunities.
uses less fuel, learn more 'race craft' in it, cheaper on parts (sometimes!) and fairly reliable.
I could turbo it for $5k? make an easy 130rwkw and cut sick laps and do perms faster.