John Hutton, the business secretary, criticised the plan, saying that it would send out the wrong message to domestic manufacturers. He has a Jaguar.
By this summer, all cars used by ministers and senior civil servants will have CO2 emissions below 130g/km. Transport secretary Ruth Kelly suggested the government could push for a target of 120g/km. British-built cars which would qualify include the Mini Cooper D and Mini Clubman Cooper D or a Nissan Micra 1.5dCi.
Although the policy does not specify the use of Toyota Prius, the Japanese-made hybrid is already in use across Whitehall.