European Makers: NOx Limits Must Rise For Real-World Emissions Tests

2015 Volkswagen Golf TDI SE

Carmakers in Europe, Asia, and North America have met exhaust emission limits for decades, as measured by strict standardized vehicle tests on dynamometers, or “rolling roads.” With the Volkswagen diesel scandal now entering its third week, U.S. and European regulators plan to test more cars under real-world conditions to measure their on-road… …read more