CO2 emission levels are measured in terms of the weight of CO2 produced for every kilometre that the vehicle travels (g/km). A measurement is made for all new BMW models by BMW's own European Union Approved Test Centre.
All new vehicles registered after March 2001 will include their official CO2 rating on their registration document (V5).
For vehicles registered prior to this date please click on the question 'What if the vehicle was registered before March 2001' below.