More than two thirds of people surveyed said they would be prepared to pay more money for a car that is less polluting compared to an otherwise identical model.
The findings were made by the Department for Transport (DfT) after a poll on public attitudes towards climate change and the impact on transport.
The DfT found that 57 per cent of people were prepared to pay "a little more" for a greener car with 11 per cent happy to fork out "a lot more".
But 25 per cent said they would not pay any more and seven per cent were not keen on buying a new car.
Eight in ten adults (81 per cent) were also found to support the government to persuade motorists to buy more eco-friendly cars.
But the 81 per cent figure who agreed to support the government has decreased by six per cent since 2006 when 87 per cent of people agreed with ministers.
The survey said that there was little change from a similar study last year, "indicating that people’s attitudes towards climate change in relation to transport have essentially remained unchanged".
However, an encouraging 74 per cent of people said that they were prepared to act against climate change by altering their actions.
And just fewer than 60 per cent thought that "individuals should try to limit their car use for the sake of the environment".
Support for more spending on bus and rail services came from more than half of the survey’s respondents and the public also back a safe walking route for schoolchildren.
The survey results will alert OM Energy, which was backed by clean technology provider Ultra Green earlier this month.
The financial help is in order to help a new venture called Ultra Green OM, which should include OM’s Electro Hydrogen Generator being put into new engines to make cars greener.
© Adfero Ltd