Just how energy efficient can tomorrow’s cars be? Volkswagen answers this question with their new XL1. This hybrid vehicle has a fuel consumption of 1L/100 kilometers making it the most fuel efficient hybrid electric / internal combustion engine combination car.

The XL1 may be highly energy efficient but its design still makes it practical for day to day use. The design is also aerodynamic and stylish. Standing at only 1,156mm tall, the XL1 is only as high as the Lamborghini Gallardo Spyder. The wing type doors give it a sportier look and still provides a large entry and exit space because they extend far into the roof.

One of the reasons why the XL1 is so fuel efficient is because it has a total weight of only 795kgs. The weight of the car is broken down as follows: 227kg for the entire drive unit; 153 kg for the running gear; 80 kg for the equipment; 105 kg for the electrical system and 230 kg for the body, wing doors and front wind screen.

The XL1 may be extremely fuel efficient, yet performance was not sacrificed. It can accelerate from 0 to 100 km/h in just 11.9 seconds and it has a top speed of 160 kmh. The Volkswagen XL1 is indeed the most efficient car in the world.