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<p>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)</p>
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