If that was not enough indication of Ford's 'Win on Sunday, sell on Monday' racing ambitions, the XW also saw the introduction, in August 1969, of the legendary GT-HO specification. The GT-HO was a homologation special built for racing. Externally it was almost indistinguishable from a standard GT, but offered a higher performance engine and improved suspension— although the 'HO' stood for 'Handling Option' the cars also gained larger Holley carburettors and other performance additions. The Phase I or 'Windsor HO' was fitted with the 351ci Windsor V8 but was replaced a year later with the 351 Cleveland, producing 300 horsepower (220 kW) in the Phase II GT-HO. Phase II GT-HO wheels featured a new 5-slot design.