Porsche no longer competes in the top tier of endurance racing, so this image is probably as close as we can get to seeing the company take an overall victory at the 24 Hours of Le Mans this year. 

The fanciful vehicle here blends elements from the 918 Spyder supercar and Mission E concept with the classic 917 race car. The result is a mighty attractive amalgamation, and given Porsche's past in endurance racing, it would probably be extremely quick, too.