VW Dieselgate one year later: what have we learned about diesel cars?

It’s now a year and eight days since the EPA broke the news that Volkswagen had admitted to including “defeat device” software in almost half a million so-called “clean diesel” vehicles sold in the U.S. from 2009 through 2015. That software detected when the cars were undergoing laboratory tests, and kept their emissions within legal limits during… …read more