Daily Mail (Enlarge photo)

22/06/2008 08:58. The 2.5-ton, 19ft car, which does 0 to 62mph in 5.7 seconds, is for sale after Sir Alan, 61, part-exchanged it for an even bigger version.

It has a 149mph top speed and first appeared as his mobile office in the second BBC series, replacing the 1998 Rolls-Royce Silver Seraph of the first.

Last week, it carried winner Lee McQueen off to his new £100,000-a-year job – in contrast to the black cabs for those told by Sir Alan: ‘You’re fired.’

But it is an environmental nightmare, doing 11 miles per gallon and chugging out 385 grams of CO2 per kilometre – more than three Toyota Prius hybrid cars.

Not that Sir Alan seems bothered.

He has swapped it for an ‘extended wheelbase’ Phantom which gives him an extra ten inches of legroom in the back.

His... // Daily Mail