translation.en: Just to illustrate what to do about the nub of the problem, namely, light vehicles, here are four ultra-light carbon-composite concept cars with low drag, and all but the one at the upper left have hybrid drive.
translation.zh: 刚才只是说明了核心问题应该怎么办， 也就是，制造轻型车辆 这里有4个超轻型碳复合材料低阻力的概念车， 除了左上角的，都有混合动力驱动