2008 Top Gear Ep 1: Supercar Fuel Economy Test
The Ferrari 599 manages 1,7 miles on one gallon
"Next up, they drive a Toyota Prius Hybrid on the race track as fast as possible with a new BMW M3 Sedan following behind at the same pace. Ten laps later, guess what? The Prius did 17.2 UK MPG (14.3 US MPG) while the M3 Sedan 19.4 UK MPG (16.2 US MPG)!"
http://www.youtube.com/watch?v=Tl3jLLrmpKs