The concepts described on these pages are words and expressions used in statistics with a specific, limited meaning. In everyday speech the word may have a different meaning. In connection with each definition you can find information about which sets of statistics use the concept.
If you are looking for statistical figures, go from the definition to the statistics page.
The principal type of motor energy used by the vehicle as certified by the competent authority of the country of registration.
Validity of the definition
- Valid until (31 December 2078)