August marked the first time outside of a lockdown that sales of electric vehicles (EVs) overtook sales of diesel cars.
The analysis from the New AutoMotive suggests just over one in ten cars registered in the UK last month was fully electric.
And when it came to petrol cars there was a drop of a third, an estimated 32,000 petrol cars were registered in August, down from 50,000 recorded the same month last year.
Ben Nelmes, Head of Policy and Research at New AutoMotive, said: “Augusts’s figures are yet more evidence that the transition to EVs is gathering pace. The UK will benefit if the government acts now to ensure that the charging infrastructure is rolled out rapidly and that people are equipped with the skills they need to get ahead of the curve.”