There's nothing like outlaw road racing, although I would NEVER advise it.
(Maybe that's the attraction of IT for me. We are the outlaw category of SCCA.)
It's been said that a big reason Britain produced an inordinate number of Formula One drivers in the 1960s was because Stewart, Hill, Clark et al got their driving training on the country roads of Scotland, at a time when these roads were among the very few in Europe that still had no speed limits. Sir Jackie, for his part, used to pickup/deliver customer vehicles to/from his father's auto repair shop. And he did his job with gusto. No wonder he won one-quarter of the grands prix he entered!