Diesel drivers 'should pay up to £800 more in road tax'

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The Vehicle Exercise Duty (VED) rate for new diesel cars should increase by up to £800 to reflect the higher levels of air pollution they cause, says a think tank.

Policy Exchange says the Treasury could generate £500million a year of additional revenue; the equivalent of increasing fuel duty by 1p-per-litre.

The think tank says the revenue should be used to fund a new diesel scrappage scheme with matched funding from car manufacturers, providing £2,000 grants to motorists who scrap an old diesel car or van and purchase a new lower emission vehicle. 

They believe that encouraging motorists to switch from diesel towards lower emission alternatives such as petrol, hybrid, or electric cars would lead to a dramatic improvement in air pollution levels in the UK.

A previous Policy Exchange report found 12.5% of London’s total area exceeded legal and healthy limits for nitrogen dioxide (NO2) in 2010.

They argue the Government needs to take more robust action at national and city level to clean up air pollution, particularly from road transport. But make it clear that existing diesel drivers should not be penalised, as they bought their vehicles in good faith.

For the last 15 years, motorists have been encouraged to purchase diesel vehicles, with road tax (VED), company car tax and capital allowances are all geared towards lower CO2 vehicles.

Consequently, diesel cars have increased from 14% of the car fleet in Great Britain in 2001, to 36% of the car fleet today. Recent evidence shows that petrol cars now match diesel cars in terms of CO2 emissions, but cause substantially less local air pollution. 

'Reduced life expectancy'

It is estimated that if air pollution stayed at current levels it would reduce the average life expectancy across all Londoners born in 2010 by up to two years.

The proposed VED increase would only be applicable to new diesel cars, not to existing diesel cars or other vehicles such as vans.

Richard Howard, head of environment and energy at Policy Exchange, said: "London and many of the UK’s other major cities are facing an air pollution crisis, with residents exposed to unhealthy levels of NO2 pollution.

"If we are to clean up air pollution, then the Government needs to recognise that diesel is the primary cause of the problem, and to promote a shift to alternatives. This needs to be done in a way which does not unduly penalise existing diesel drivers, who bought their vehicle in good faith, and gives motorists sufficient time to respond. 

"Instead of increasing diesel fuel duty or banning diesels from city centres, the Government should look to increase taxes on new diesel cars and offer scrappage grants to take old polluting diesels off the road."

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