Producing more cars obviously uses resources. Looking at EPA numbers fuel economy improvements in recent years seems to have been minuscule. From 2007 to 2017

Producing more cars obviously uses resources. Looking at EPA numbers fuel economy improvements in recent years seems to have been minuscule. From 2007 to 2017 the Corolla went from 31mpg to 30, the Focus went from 27mpg to 28, the Highlander saw zero change at 22mpg. https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=23549 https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=23549 https://www.fueleconomy.gov/feg/noframes/38152.shtml https://www.fueleconomy.gov/feg/noframes/38152.shtml https://www.fueleconomy.gov/feg/noframes/22758.shtml https://www.fueleconomy.gov/feg/noframes/22758.shtml https://www.fueleconomy.gov/feg/noframes/38473.shtml https://www.fueleconomy.gov/feg/noframes/38473.shtml https://www.fueleconomy.gov/feg/noframes/23765.shtml https://www.fueleconomy.gov/feg/noframes/23765.shtml https://www.fueleconomy.gov/feg/noframes/38414.shtml https://www.fueleconomy.gov/feg/noframes/38414.shtml