Ford’s “Most Original” GT40 MkII Is Headed to Auction for the First Time in Decades

Key Points

• The 1966 Ford GT40 MkII (XGT-3) is an ultra-rare, historically significant lightweight model.
• Preserved with original parts, it is called the “most original MkII in existence.”
• The car headlines Mecum’s Apex Collection auction at Kissimmee 2026, January 6–18.

A Blue Oval Legend
The Ford GT40 is undeniably a legend not only because of its engineering but also for ending Ferrari’s reign at the 24 Hours of Le Mans in 1966. This particular example for sale, however, may be one of the most historically significant cars to emerge from that era.

Listed on Mecum Auctions, this 1966 GT40 MkII (XGT-3) was constructed in the rare factory lightweight body style, a configuration found on only three of the 11 MkII chassis ever produced. Respected GT40 historian Ronnie Spain even described XGT-3 as the “most original MkII in existence,” citing its remarkable preservation of the original configuration.

Shedding Pounds for Performance
For context, Ford developed the GT40 MkII as the heavy-duty evolution of the MkI, built to handle the larger 7.0-liter (427-cubic-inch) big-block V8 (from a 4.7-liter V8). The revisions proved successful after three GT40 MkIIs – piloted by drivers such as Ken Miles and McLaren founder Bruce McLaren – crossed the line in a dominant 1-2-3 finish at the French enduro race. That triumph ended Ferrari’s six-year winning streak at a playground long dominated by European marques.

Three MkII chassis were built with a lightweight body construction, a change that naturally improved the power-to-weight ratio and enhanced overall racing capability. These examples featured an aluminum roof and a unique adjustable suspension.

This XGT-3, meanwhile, heads to auction with its original bodywork, thin-gauge steel chassis, and period-correct Le Mans–spec fuel crossover tanks. Its big-block V8 remains intact as well. In its original factory tune, the engine produced 485 horsepower and 475 lb-ft of torque. Power is delivered to the rear wheels through a five-speed manual gearbox.

Ready for a New Beginning
Adding to its historical significance, this particular example remained in Ford Motor Company’s possession until 1977 and has had only four private owners since.

Mecum Auctions will offer this car at Kissimmee 2026, taking place at Osceola Heritage Park from January 6 to 18 next year. It will cross the block as a headline attraction within the so-called Apex Collection, described as a group of “rare, high-quality, and highly coveted offerings.” Some of the vehicles in the collection include a 1966 Ford GT40 MkII Replica, a 1966 Shelby 427 Cobra, and a 2023 Lamborghini Huracán Sterrato.