The Worldwide Harmonised Light Vehicle Test Procedure (WLTP) is the new laboratory test for measuring fuel consumption and emissions from cars.

What are the benefits of WLTP?

WLTP will introduce much more realistic testing conditions. These include:

  • More realistic driving behaviour;
  • A greater range of driving situations (urban, suburban, main road, motorway);
  • Longer test distances;
  • More realistic ambient temperatures, closer to the European average;
  • Higher average and maximum speeds;
  • Higher average and maximum drive power;
  • More dynamic and representative accelerations and decelerations;
  • Shorter stops;
  • Optional equipment: CO2 values and fuel consumption are provided for individual vehicles as built;
  • Stricter car set-up and measurement conditions;
  • Enables best and worst-case values on consumer information, reflecting the options available for similar car models.

Because of all these improvements, WLTP will provide a much more accurate basis for calculating a car’s fuel consumption and emissions.
This will ensure that lab measurements better reflect the on-road performance of a car.

Will WLTP end the discrepancy between the laboratory and on-road performance of cars?

Will my fuel consumption increase under WLTP?

From NEDC to WLTP: What will change?

When will the WLTP changes take place?

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