Grants to motorists who convert their cars to LPG will end after the Government slashed by 30% funding for cleaner fuel vehicles.

The LPG proposals were published by the Energy Saving Trust, which manages the Powershift scheme. It has decided to freeze all LPG applications until April. Only the cleanest hybrid, electric and liquefied petroleum gasoline will now be awarded Powershift grants, but some experts believe fundings levels are far too low. Drivers opting for aftermarket dealer-fit LPG conversions, which previously attracted a £1,000 grant, will no longer have the cost subsidised.

Society of Motor Manufacturers and Traders chief executive Christopher Macgowan is concerned. “More priority should have been given to the Powershift programme, which drives the development of cleaner new vehicle technologies,” he says.

The proposals mean higher grant levels may be available for the same equipment for programmes in Scotland and Wales.

Mcgowan asks: “Surely it makes sense to have a level playing field across the UK?”