Lawmakers require standardized test procedures to measure how much fuel a car consumes and whether it complies with the emissions limits. The new “Worldwide harmonized Light-duty vehicles Test Procedure” (WLTP) applies to the type approval of new passenger cars across the EU since September 1, 2017. It succeeds the NEDC (New European Driving Cycle), which has been in force since 1992. It comprises both a new driving profile on test benches as well as more precise and up-to-date conditions for the entire test and is therefore intended to result in more realistic consumption data than was the case with the previous measurement method. What are the implications of the change?
Seven questions, seven answers.