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Introduction to

New WLTP Regulations

Vitara Offroad

WLTP (Worldwide Harmonised Light Vehicle Test Procedure) is a laboratory test used to measure a car’s fuel consumption and emissions, and has been designed closely to match modern driving conditions in its testing. It also determines how much road tax and company car benefit-in-tax will have to be paid.


Previously, fuel consumption was measured using the NEDC (New European Driving Cycle) test that was introduced in the 1980s, but this became outdated.


The conditions of the new WLTP test are defined by EU law and have been implemented across Europe. This test provides a more accurate basis for calculating a car’s fuel consumption and CO2 emissions and helps to ensure that quoted performance figures reflect the on-road performance of your new car.

There are several differences between the old (NEDC) test and the new (WLTP) method. Some of the main differences are:

1. The WLTP test is over a longer distance and under more rigorous conditions than NEDC

2. The test speeds are higher to reflect modern motorway driving styles

3. A wider temperature range is used

4. All vehicle equipment is taken into account 

The Implementation of WLTP Regulations

Here are some of the main timings that apply to all car brands:


  • 1st September 2017 - Since this date all new vehicles introduced must have been tested under WLTP conditions
  • 1st September 2018 - All new vehicle registrations must be tested under WLTP
  • January 2019 - Advertised vehicle data to include WLTP fuel consumption data
  • 1st April 2020 - All new cars registered to be taxed according to the CO2 emissions figure measured under the WLTP test cycle.


To help car buyers to easily understand how a new WLTP tested vehicle compares with an old NEDC vehicle, the regulatory authorities have asked all manufacturers to continue to communicate only the NEDC results. That means vehicles already certified under WLTP will have their results converted to an NEDC equivalent (called NEDCC). The fuel consumption and CO2 emissions information that you see in brochures and advertising will therefore continue to show NEDC data.


With the old NEDC test, we are familiar with seeing three fuel consumption numbers and one number for CO2 emissions. Vehicles tested under the WLTP method will have five numbers for fuel consumption and one CO2 emissions figure plus an NEDC equivalent (NEDCC) CO2 emissions figure.

WLTP Image 1
WLTP Image 2
Suzuki S-Cross Hybrid

Suzuki Models

What does this mean?

We design our cars with you in mind to ensure you get the best experience for the best value. We offer unique Hybrid technology as part of our high spec, affordable range, which delivers great fuel efficiency and low emissions without compromising value and great driving experience.


It’s important to understand that actual vehicle performance, fuel consumption and emissions are not affected by the change to the WLTP testing method.


WLTP is simply a new and more accurate method for measuring a car’s fuel consumption and emissions, which is why the data published for WLTP models

From great value, fun to drive small cars to capable SUVs with ALLGRIP 4-wheel drive*, the Suzuki range has got you covered. And there's a range of dynamic Hybrid options to choose from, which all deliver great fuel efficiency, low CO2 emissions and a great driving experience.

Full details about the WLTP test and background can be found here: