
The Volkswagen L1 diesel hybrid concept created quite a stir at the 2009 Frankfurt Motor Show — which despite a slew of high-end exotics was more green than ever this year. Volkswagen says its one-liter concept car would be the most fuel-efficient car in the world. Actually, they say it is the most fuel-efficient car in the world, but I’ll withhold that title until the car leaves the “study” stage and reaches production.
The L1 is light, thanks to a carbon fiber body; compact like a VW Fox, and short, with a height similar to the low-slung Lamborghini Murcielago, according to Volkswagen. The hybrid has an electric motor and a teeny diesel-powered engine, plus start-stop technology for further fuel savings.
The VW L1 Concept by the numbers:
- 837 pounds
- 12.5 feet long; 3.75 feet wide
- 170 mpg combined



