One Make Car Series (Ferrari Challenge, Porsche Cup, etc.)

[G.Irish]

the more expensive the cars (even foord is doing this with the mustangs)... the more likely they are not ownly and arrive and drive series, but the cars are factory built race cars. these cars also fit into series like grand am and ALMS... where "fame" can be had and it brings in movie starts and rich people.

the more budget minded spec type series (TDI Cup, the mazda adventures, etc) dont have the glamour or the sponsors... and do the rich people want to drive jettas, miatas, or even spec zs? the ALMS/Grand Am specced Zs they will drive though

This is what I'm getting at, if you had an arrive and drive based on a bit more desirable car you might get enough takers to make it worthwhile. And it wouldn't take filthy rich guys to fill the grid the way it does with P Cup or F Challenge.

You make a good point about the factory built race cars fitting into pro racing. Maybe the way to do it is do a spec car that would fit easily into Grand Am Street Touring (or whatever the hell they call it now). The level of modification would have to be higher, which would be more costly. But it would attract more competitors I think.