IT HAS A NICE JETSONISH LOOK: VW Confirms 1L Concept Will Become Reality in 2010. “The VW 1L is so named because, in theory, it only consumes one liter of fuel per 100 kilometers traveled. For those of us in the US, this translates into about 235 MPG. Definitely far and above anything on the market currently.” It is kinda low and small. But if they keep the Jetsonish look, it’ll sell. If they shift to something more boring, it won’t.