Sir Gawaine George Hope Baillie, 7th Baronet (8 March 1934 – 21 December 2003) was a British amateur motor racing driver, engineer, industrialist, stamp collector, and the owner of the estate surrounding Leeds Castle, the ancient fortress in Kent.

[5] Following education at Sandroyd School, Eton and Cambridge,[citation needed] he created HPC Engineering in 1959,[3] a company which specialises in sub-contract manufacturing for the automotive, aerospace, computer, defence, medical and machine tool industries.

He was also an amateur race car driver, competing in numerous championships against Stirling Moss, Mike Hawthorn and Jackie Stewart.

By 1958, he became a member of the Equipe Endeavour team, earning several wins in a Jaguar Mark 1 including the John Davy Trophy at Brands Hatch as part of the inaugural British Saloon Car Championship season.

By 1960, Sir Gawaine had purchased a Lotus Elite and entered several rounds of the World Sportscar Championship, including his first attempt at the 24 Hours of Le Mans.

He mastered at least ten areas of specialisation and acquired over 100,000 stamps,[3] of the highest quality including a copy of the scarce Edward VII 2d Tyrian plum.