Chris Wilson/RM Sotheby's
The 911 GT1 Evolution, which competed with the McLaren F1 and Mercedes CLK AMG GTR in a particularly speedy era of endurance racing, is estimated by the auction house to sell for about $3 million.
The car is not a 911 GT1 Straßenversion, the softened, road-car version of the GT1. It is an actual 13-race winner, one of only 18 built and of the same type that delivered Porsche its record-breaking 16th win at Le Mans.
This particular car won three Canadian GT championships from 1999 to 2001 and competed in the Rolex 24 at Daytona.
Somehow, the car - powered by a twin-turbo flat six making greater than 600 horsepower that sounds like this - is registered as road-legal in the UK. Yes, it can be driven on real roads.
Here it is.