The pavilion of Volkswagen is probably the most sophisticated amongst all and truly stands a class apart. On this platform, German giant has launched and displayed the New Volkswagen Touareg along with legendary New Volkswagen Beetle. However, the distinctive concept car names XL1 can immediately grab someone attention for its unique design and the appearance. This Super Efficient Vehicle (SEV) which is a Diesel-Hybrid Prototype was first unveiled back at Qatar Auto Show in 2011. The speciality of this one litre engine car is that it can easily achieve 100 Kilometres in mere a single litre of fuel.