Volkswagen's Formula XL1 prototype made its official debut at the Qatar Motor Show this week. This is the culmination of a project which aimed to bring to market an everyday-use vehicle with fuel consumption of 1.0 liter per 100 kilometers.
This electric motor, which is powered by lithium-ion batteries and features a sleek design, claims to get 261 miles-per-gallon.
The XL1 has a drag coefficient around 0.18. Compare that with the latest Toyota Prius, which features a drag coefficient 0.25. Drag coefficient refers to a ratio of resistance measuring an object in movement.