Have to pipe in on the SM issue. One thing I really like about IT is that each car has its different strengths and weaknesses. 240zs are light and tossable, with good power. RX7 has better brakes. 944 is a good hanlder but down on power. 325..oh yeah, no weakness.
But anyway, my point is that an IT race, for me at least, is a lot about giving up someting to a car here, but taking it there. I've found that to be very enjoyable so far.
How does that work in SM? SM races to me seem to involve long parades of cars, with the leaders only a few seconds faster at most than the backmarkers. People only pass when someone else makes a mistake. Not a whole lot of back and forth/give and take.
I don't know. I mean, all the Miatas are good for SCCA I suppose, but at the same time, when 35 Miatas show up at VIR and only a handful of ITC an ITA cars, I'm not sure the quality of racing doesn't suffer.
One last point -- I see more spec miatas do crazy, car threatening stuff, than any other make. It's like this are throw away cars to these people. At VIR, I got passed in turn 4 of the FIRST as in pit out lap of a WARM UP session, by a Miata that went on to nearly spin in the next corner, and then took two other cars three wide into Oak Tree, resulting in metal to metal contact. At my school at Roebling, three of the wrecked cars where Miatas. Craziness.
Has there ever been a spec class with this much popularity?