Steen – I think Tom is simply referring to the distances needed to travel to get to tracks. We do in fact have a lower population density than Europe (84 people/sq. mile vs France at 289 or Germany at 609)
Derek – best advice, find your local track(s), talk to the other drivers. In my area (Denver) I have seen ZERO modern ICC engines. You run across the occasional Pavesi. But then if you want to race shifter class, only one option, CR125.