Question to the Department for Transport:

To ask the Secretary of State for Transport, what was the CO2 intensity for new internal combustion car engines in each of the last three years.

The carbon intensity of newly registered passenger vehicles is measured in grams of CO2 emitted per kilometre driven. The last three years of data held on the fleet wide average CO2 emissions of newly registered petrol and diesel cars in the UK shows an increase over time. Excluding zero emission vehicle registrations, the provisional average for new petrol cars only in 2020 was 140.0 grams of CO2 per kilometre, 143.3 grams of CO2 per kilometre in 2021 and 143.0 grams of CO2 per kilometre in 2022. The provisional average for new diesel cars only in 2020 was 153.8 grams of CO2 per kilometre, 161.0 grams of CO2 per kilometre in 2021 and 164.0 grams of CO2 per kilometre in 2022. When considering the overall fleet of new cars, including zero emission, the average CO2 intensity has decreased over the last three years. The provisional average for 2020 was 126.6 grams of CO2 per kilometre, 118.5 grams of CO2 per kilometre in 2021 and 110.8g grams of CO2 per kilometre in 2022. This data set is available at: Vehicle licensing statistics data tables - GOV.UK (www.gov.uk)