What is WLTP?
Confused about WLTP and what it means for you or your company? We've answered your questions here...
So what is WLTP?
WLTP stands for Worldwide Harmonised Light Vehicle Test Procurement. It is the name of the test used to measure how economical a vehicle is, by measuring 3 things:
- Fuel consumption
- CO2 emissions
- Pollutant emissions
For electric cars, energy consumption is measured.
The new WLTP tests replace the NEDC (New European Driving Cycle) which, up until now, is how vehicles were tested based on theoretical driving.
The NEDC was designed in the 80s so advancements in technology and changes in driving conditions mean testing can now be much more rigorous to provide more accurate results.
WLTP, however, uses real-driving data and should therefore be more accurate as the test is based on normal driving styles.
The improvements made to testing include:
- Realistic driving styles
- Broader range of driving situations, such as; motorway driving, town centre driving, suburban driving, etc.
- Longer test distances to obtain better data
- Better represented acceleration and deceleration
- More realistic temperatures for Europe
- Higher driving speeds
- Shorter stops
- Testing for cars with different optional extras added
What is the purpose of WLTP?
WLTP testing has been standardised by EU law to help us, as consumers, make more informed decisions when comparing vehicles.
By carrying out more rigorous testing, more accurate data on the vehicle's CO2 emissions and fuel consumption will be available to us.
Which vehicles are affected by WLTP?
The new WLTP testing applies to new car models introduced from September 2017 and applies to all new car registrations from September 2018.
Cars registered before September 2018 will not be affected by WLTP.
WLTP for vans will come in to effect in September 2019.
Does WLTP mean on-road performance will be exactly as stated in the manufacturer's brochure?
Although the new WLTP will give consumers much more realistic figures, no two drivers have the same driving style so it isn't possible for the new tests to cover every possible variation of driving style.
In addition to this, traffic levels, weather conditions, etc will differ from country to country so there won't be one single emission value to cover every vehicle in the world.
Will fuel consumption increase under WLTP?
No. The performance of your car won't change under WLTP.
What will change is the information you are given. Because the new tests are so much more rigorous, the WLTP emission figures provided my manufacturers will be much more accurate.
Will WLTP affect how much car tax I pay?
Not until 5th April 2020. Until then, all vehicles will be taxed on their NEDC-correlated CO2 emissions figure.
Vehicle Excise Duty (VED) for cars registered from this date will be based on their new WLTP CO2 emissions figures.
Will WLTP affect how much company car tax I pay?
Company car tax or benefit in kind tax (BiK) is calculated using the vehicle's CO2 emissions.
As with VED, until 5th April 2020 this will be based on the NEDC-correlated figure.
Car registered from this date will be based on their new WLTP CO2 emissions figures.
However, if your company car scheme is based on CO2 emissions, there may be a limit on the cars available to you following WLTP.
Got more questions about WLTP?
Feel free to give us a call on 0161 762 5680 or send us a message with any questions you have and we'll help clear up any confusion about WLTP!