Get Real testing campaign: why new laboratory tests will do little to improve real-world fuel economy

The report shows that the CO2 emissions gap between the independently performed WLTP and NEDC tests is small, and suggests the new WLTP test procedure is likely not sufficient to reduce or close the gap between official and real-world CO2 emissions. The report also stresses the lack of transparency about vehicle data, which complicates the analysis of independent tests and makes possible cheating harder to detect.

In order to understand what effect the WLTP test will have on new cars’ real-world CO2 performance and fuel consumption, the Get Real project had three different WLTP-approved vehicles tested by Emisia, an independent laboratory, to test: a petrol Opel Adam I (with an indirect injection system), a petrol Ford Fiesta VII (with a direct injection system) and a diesel Honda Civic X.