How fast could a car go around the Nurburgring Nordschleife if it was unimpeded by racing regulations, or by g-forces acting on the driver? About 3'38.031, as this Red Bull X2014 Fan Car did in Gran Turismo 6.
The driver is YouTube uploader junasaken. No word if he will be getting inducted into F1 anytime soon, but it's still a hilarious lap.
(Hat tip to Newsboy!)