宝马正在开发一款超省油车型，百公里油耗仅为0.4升。这款四座车采用碳纤维增强塑料车身，风阻极低，车重低于1200公斤。该车动力系统目前仍是一个迷，但据说这是一辆增程电动车，动力系统包括一台电机和双缸汽油引擎，后者将作为发电机，最高时速不低于180公里。大众已经将XL1投产，而宝马这款车是否能量产还是个问题。

 

BMW is reportedly developing an ultra-fuel efficient model that returns 588 mpg

BMW is reportedly developing an ultra-fuel efficient car that consumes just 0.4 L/100km (588 mpg US / 706.2 mpg UK).

 

According to Automobilwoche's sources, the car is four-seater that has a carbon fiber reinforced plastic body and an extremely low drag coefficient. The model is also rumored to weigh less than 1200 kg (2645 lbs).

 

The car's powertrain remains shrouded in secrecy but the model is reportedly a range-extended electric vehicle which uses an electric motor and a two-cylinder petrol engine that acts as a generator. While the model will likely be slow, it will reportedly have a top speed of at least 180 km/h (111.8 mph).

 

While Volkswagen eventually put the XL1 into production, the chances of seeing a production version of BMW's eco-friendly model remains "questionable."