If you're not familiar with the name, Leh Keen is one fast, fast driver, proving it season after season in the Rolex Sports Cars Series and, like you'll see here, a range of other events.
As part of a NASA time trial, Keen--wearing street clothes and a helmet--piloted the TopSpeed Motorsports GT-R to a 1:23.8 time around Road Atlanta's famously high-speed, treacherous circuit.
The lap record isn't an outright record--Le Mans Prototypes race here, after all--but it's a GT-R record and a NASA TTR class record. Both feats are impressive. All the more so that it was done in jeans and a windbreaker.
Oh, and the sound of that GT-R ain't half bad, either.