The WLTP and NEDC cycles refer to two different test protocols used to assess vehicle performance in terms of fuel consumption and exhaust emissions.
WLTP, which stands for ‘Worldwide Harmonised Light Vehicles Test Procedure’, is a newer and more realistic test cycle introduced in 2017. It was developed to provide more accurate vehicle fuel consumption and emissions data. The WLTP cycle simulates actual driving conditions, with higher speeds, more vigorous acceleration, and various driving situations, reflecting real-life vehicle use better. The WLTP cycle provides values for fuel consumption and Co2 emissions more reflective of everyday driving conditions.
NEDC, which stands for ‘New European Driving Cycle’, was introduced in the 1980s and was the standard test protocol used in Europe before the introduction of the WLTP cycle. It was characterised by lower accelerations and speeds than the WLTP cycle and did not adequately reflect real-world driving conditions.
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