What a top idea .. the only thing I would add is if a series like this was to ever get a hope of running, it would have to cost either the same or less to run than the current cars. Ford have already indicated that they are intending to reduce the expenditure in the Supercar series, and in the good ole days of Group A racing, the costs were on par (in raw dollars) with the current expenditure (ie: a 2-car team costs $1 million to run now, back in the Group A days, it was $1 million back then)