This sleek and swift Koenigsegg CCXR sports car uses E85 and E100 ethanol fuel or standard 98 octane fuel. Photo by paalia on Flickr via Creative Commons

The charcoal gray Koenigsegg CCXR sports car is displayed with hundreds of bright lights overhead sparkling off of the car’s finish. Hundreds of people appear to be lined up to see the car at an auto show. The car’s doors are open; they swivel up and to the front toward the engine. Photo by paalia on Flickr via Creative Commons.