This would still be THE ultimate road car: the Maserati MC12 Corsa. Apparently there’s a handful of them that were converted to be road legal, but you have a better chance of being struck by lightning and winning the lottery on the same day than seeing one. I was extremely lucky to see on in Monterey last year during car week (third video down), but I don’t think it will be coming back any time soon. For now enjoy the pornography!
Same car above driving in Florida