Why is the NEDC out of date?

The NEDC (New European Driving Cycle) was introduced in 1992. Since that time, cars, roads and driving behaviour have changed quite a bit. It's an artificial laboratory test that helps compare vehicles, without reflecting day-to-day driving and fuel consumption.

 

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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