What does the NEDC measure?

The NEDC is an artificial laboratory test that helps compare the fuel consumption of vehicles, without reflecting the fuel consumption of day-to-day driving.

 

Actual consumption today is often very different from the NEDC information. The main reasons include:

 

  • The theoretical driving profiles NEDC uses don’t match real user profiles
  • Insufficient acceleration
  • Too many stop-and-go phases
  • NEDC doesn’t incorporate higher speeds, which sets the average speed too low
  • Gear shifting points are broadly defined by transmission type, so they're the same for all cars with manual transmission
  • Optional equipment isn't taken into account
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