Automobile engineers are vying with each other in trying to build a car that would consume least fuel. Engineers at Volkswagen seemed to have succeeded in developing the most energy efficient car on earth by building VW that consumes only 1 liter of diesel for every 100 km drive. The most unusual part of this new automobile innovation is that this seemingly difficult task had been accomplished by adjusting the exterior design of the car without any significant technological advancement.
Fuel efficiency depends on aerodynamics and weight of a car. To provide proper aerodynamic design the size of the facade needs to be tapered. The VW has been given an unusually narrow, bullet-shaped body where passengers cannot sit beside the driver but have to sit behind the driver. The car has an aircraft-like canopy, enclosed rear wheels, special flat carbon-fiber front wheel covers and an aerodynamic underpan. The side cooling air inlets open only when the engine needs cooling and otherwise remains closed.
To make the car as lightweight as possible, lightweight carbon fiber or magnesium has been used as the building material. To prevent loading of any extra weight the car has not even been painted. The gears of the car are hollow, the bolts are made of titanium, and there are no side mirrors. Safety precautions have been provided by incorporating inbuilt video screens, built-in crash tubes, pressure sensors for airbag control, front crumble zones, ABS and ESP.