https://www.fueleconomy.gov/feg/tech_adv.shtml
https://www.consumerreports.org/fuel-economy-efficiency/fuel-saving-innovations/
赞科普！
我觉得有些省油技术会使旧车的可靠性降低，维修难度增加。
iGarage
2019-02-15 16:14:42赞科普！