I recall early on that GM had a recall or upgrade with a modified tensioner for the fan belts, it was so prevalent.
My wife had real problems with hers - and not just the fan belt - bad oil consumption and stalling/refusing to start - all sorts of other things, too, she says, but that was long before I knew her.
I didn't like the first gen Corvair styling or the meager amount of power initially. But I always wanted a second-gen turbocharged hardtop. I came close in '68, but I ended up getting one of the first Camaro V8s instead - it came down to one of the other and a V8 . . . well. It turned out to be an extraordinarily good car for me . . .
All the hoo-hah about Cirvair's rear suspension never concerned me - I thought Nader was wrong. I drove lots of Spitfires and they had swing axle rear suspensions.
Never had a Spitfire, but I did have GT-6 briefly...too much weight in the front... could have been overcome, but I didn't really like it as well as the Datsun 1600 Fairlady roadster I had at the same time. The Triumph sure looked better, though and ran in a straight line like a rocket.