CO2 emission & emission class

The CO2 emission is the amount of carbon dioxide a car emits under WLTP type approval, stated in grams per kilometre. It is directly related to the fuel or energy consumption. The Euro emission class (such as Euro 6 with its sub-variants) is a separate standard that limits the permitted emission of harmful substances, including nitrogen oxides and particulates; that is something other than the CO2 value.

Both figures are type-approval values from the laboratory, not a measurement of your trip. The real-world CO2 is higher as the actual consumption is higher, for the same reasons as with consumption: speed, cold, load and driving style. Fully electric cars have a local emission of zero grams per kilometre; the emission associated with generating the charged electricity falls outside this type-approval value.

On this site we show the CO2 value and the emission class as factual manufacturer and type-approval data with a label. We do not attach any tax amount to it and make no fiscal calculation; for the fiscal consequences of a CO2 value, such as BPM, the rules and reference date of the Tax Administration (Belastingdienst) apply.