British motorists are increasingly turning to ultra-low emission vehicles (ULEVs) to get from A to B.
Official figures show more than 25,000 plug-in car and plug-in van grant claims have been submitted since the scheme began in 2010 - while total ULEV sales last year were some four times the level of 2013.
It means the UK is now ahead of France and Germany when it comes to ULEV take-up.
Transport Minister Baroness Kramer attributes the growing popularity of the green technology to cheap running costs. The cost of keeping a ULEV on the road starts at just 2 pence per mile.
A total of 25 car models and seven van models are currently eligible for the plug-in grant. But a further 40 models are expected to hit the market over the next three years, thanks to a £500 million government investment.
ULEVs must meet criteria in one of three categories from April 2015 to qualify for the grant. They are:
Category 1 - CO2 emissions of less than 50g/km and a zero emission range of at least 70 miles
Category 2 - CO2 emissions of less than 50g/km and a zero emission range between 10 and 69 miles
Category 3 - CO2 emissions of 50-75g/km and a zero emission range of at least 20 miles
Copyright Press Association 2015