After selling Aston Martin, Gauntlett returned to the classic scene and became a trustee of the National Motor Museum at Beaulieu. Through this association he saved the Napier Railton for the country, topping up the UK National Lottery funding with the British Racing Drivers' Club and comedian Rowan Atkinson to keep the car at its home at Brooklands. In 1999, Gauntlett and Prince Michael of Kent took a blower 4.5 Bentley from London to Moscow. He was an active supporter of the Le Mans classic parades in the eighties until they banned him for driving too fast.