What Is The Worldwide Harmonised Light Vehicles Test Procedure?

What Is The Worldwide Harmonised Light Vehicles Test Procedure?

Blog / What Is The Worldwide Harmonised Light Vehicles Test Procedure?

13/09/2019

We have covered a wide range of subject matters on our website, ranging from the different types of finance plans, to the key points that drivers should know before getting behind the wheel for the first time after passing their test, to the impact of a low credit score on a finance plan. But one term that we have yet to expand upon in our blog is the Worldwide Harmonised Light Vehicles Test Procedure, or WLTP, and that is the focus of today’s article.

So, to explain its literal definition, the Worldwide Harmonised Light Vehicles Test Procedure is essentially a classification that measures pollutants, carbon dioxide emissions and general fuel consumption. It covers regular vehicles, as well as plug-in hybrids and electrical cars (the latter of which would not require a check on fuel consumption given that it operates electrically at all times). This was introduced in 2015, and it replaced the previous New European Driving Cycle, and it came into play courtesy of the United Nations Economic Commission for Europe (UNECE).

The tests are carried out during development and production, meaning that each vehicle tested will already have its WLTP rating by the time it becomes available for motorists, and every newly-introduced car undergoes this text prior to release. There are three test cycles allocated to a vehicle upon inspection which are based on the findings of the procedure: Class 1, which is assigned to low power cars; Class 2, which applies to those with moderate emissions; and Class 3, which is given to high power vehicles. If you think about it logically, most electric cars would come under Class 1, while the noisier motors which may be disparagingly termed gas-guzzlers would likely receive Class 3.

You may wonder what the real purpose of this is, but it is to identify those vehicles which are way over the acceptable threshold of pollutant and CO2 emission and fuel consumption. So, if a newly-produced car undergoes the procedure prior to release and the results are startlingly high, then it is very much possible that aspects of the car’s development may require a second look in order to bring the numbers down to a point deemed appropriate within the Class 3 range. The intention is for driving to become greener and less harmful to the environment over time, so the WLTP will play a key role in not only identifying those cars that have the potential to pollute the air the most, but to also hopefully inspire manufacturers to alter their strategy somewhat in order to focus on designing cars which would be deemed Class 1 and Class 2, and eventually just Class 1, which will make driving healthier for everybody.

Hopefully, you will now have a greater understanding about what the Worldwide Harmonised Light Vehicles Test Procedure is.

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