Tesla electric semi, plug-in car sales, CAFE changes impact, China’s importance: Today’s Car News

2018 Lexus LS500hToday, we've got an update on Tesla's promised semi tractor, some real-world analysis of the possible impact of fuel-economy rules, and the start of our monthly report on sales of cars with plugs. All this and more on Green Car Reports. Which is more important to the future of electric cars, China or the U.S.? We polled our Twitter...