Green fleet index

The Green Fleet Index is the estimated percentage of miles driven by wholly zero-emissions-at-the-tailpipe cars in the UK, calculated every quarter. At each quarter-end, it uses the latest DVLA vehicle records to determine ZEVs on the road and the last two years of MOT test records to determine miles driven by age of car and fuel type. Combined, this indicates how many of the miles driven by UK cars are driven by zero tailpipe emissions cars. It shows our progress to what Foundation research indicates is the minimum proportion necessary by the end of 2030 to meet targets for carbon reduction from cars.

This second chart shows the progress made on reducing carbon emissions from cars by fuel type and in total.