There is a new testing procedure (WLTP, Worldwide harmonized Light vehicles Test Procedures). Major carmakers just want to delay it:<p><a href="http:&#x2F;&#x2F;www.transportenvironment.org&#x2F;news&#x2F;carmakers-pushing-3-year-delay-tougher-co2-tests" rel="nofollow">http:&#x2F;&#x2F;www.transportenvironment.org&#x2F;news&#x2F;carmakers-pushing-3...</a><p>The emission cycle used now (New European Driving Cycle, or NEDC) is actually a joke, nobody drives like that:
<a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;New_European_Driving_Cycle#&#x2F;media&#x2F;File:New_European_Driving_Cycle.svg" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;New_European_Driving_Cycle#&#x2F;me...</a><p>comparing to the new one (WLTP):
<a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Worldwide_harmonized_Light_vehicles_Test_Procedures#&#x2F;media&#x2F;File:WLTC_class_3.svg" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Worldwide_harmonized_Light_veh...</a><p>With the new testing procedure in place, you can still cheat like Volkswagen. But it will benefit the customers more, when the OEMs try to game the system by optimizing solely for the cycle.