Recently, Volkswagen released a preview of the new concept car - Mission Efficiency. The main task of the car is to explore the limits of energy consumption. It has been completed and will be tested from Wolfsburg to Vienna (about 780km). At present, the official technical details are still confidential, but it is revealed that this is a pure electric model. It plans to announce more information on September 14. From the trailer, the new car will have a low wind resistance shape, a flat front design, a very smooth roof line, and a slipback shape at the rear. In addition, the vehicle will be equipped with low wind resistance rims and has a thicker eyebrow design. It is worth mentioning that Volkswagen launched the XL1 concept car in 2013. At that time, it was nicknamed "1-liter car" with a comprehensive fuel consumption of only 0.9L for 100 kilometers, its air resistance coefficient was only 0.189, and the overall weight of the car was 795kg. Powered by a 0.8L diesel supercharged engine and an electric motor with a maximum power of 48 hp and 27 hp, respectively. We will also keep an eye out for more information about the new car. (Written by Guo Chen, Automobile House).