The Mercedes E-Class our expert driver Derek Lea drove was a 1 year old E220 model. This executive saloon was previously used as a courtesy car so came with 21,384 miles (34,414 km) on the clock. It has a 2.1 litre diesel engine is capable of reaching 0-62 in 8.4 seconds.

Watch the video below to get an idea of how the 1-Litre Challenge works. We also offer handy tips on fuel-efficient driving, so if you weren't lucky enough to win free fuel, you can still save some!

Congratulations to Peter Gomm who won the first prize, and the runners-up Michael Hill, Sonny van den Dijssel, Oliviero Battaglia, Daryn Metti and Sven Strößenreuther.