The new Volkswagen Up! Lite Concept has revealed at the 2009 Los Angeles Auto Show. The VW company say it’s the most fuel-efficient car in the world. The Up! Lite is sincerely a precise wing of the L1 Concept that has unveiled in September at the Frankfurt Motor Show.The new VW Up! Lite Concept powered by two sources. The first is a 2-cylinder 0.8-litre TDI engine making 38kW (51hp) at 4,000rpm