Craig Breedlove’s Spirit of America Sonic 1 is heading to auction

The car that ignited a new fire in land speed record chasing during the 1960s can now be yours

21 February 2025 - 16:24
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The Spirit of America Sonic 1 was the first car to breach 600mph on land.
The Spirit of America Sonic 1 was the first car to breach 600mph on land.
Image: National Motor Museum/Heritage Images/Getty Images

On February 27, RM Sotheby’s will auction Craig Breedlove’s land speed record-breaking Spirit of America Sonic 1 car at Coral Gables, Florida, in the US.

On November 15 1965 Breedlove drove his jet-powered car at the Utah Bonneville Salt Flats in the US at an unprecedented 600mph (965.606km/h.)

Notably, Breedlove’s wife Lee subsequently became the fastest woman alive when she drove the Sonic I at 308.506mph (496.492km/h).

Breedlove set an earlier record of 655.770km/h in August 1963 using a craft propelled by the GE J47 turbojet engine, as used on the F-86 Sabre fighter plane, but by mid-October of that year his record had already been broken three times — by Tom Green, Art Arfons and Breedlove himself.

The cockpit of the Spirit of America Sonic 1 with rudimentary tech and safety equipment.
The cockpit of the Spirit of America Sonic 1 with rudimentary tech and safety equipment.
Image: SUPPLIED

He returned to the salt flats on November 15 1965 piloting a machine with a more powerful GE J79 turbojet like those found on the F-4 Phantom II interceptors and posted 966.573km/h, becoming the first man to cross the 600mph threshold. 

The chosen name for the craft, Sonic 1, was intentional. Breedlove’s record stood until October 1970, with neither him nor the other contenders able to go supersonic until the Thrust SSC arrived on the scene in 1997 to post a still unbroken 1,227.986km/h. 

The Sonic I was purchased by the Indianapolis Motor Speedway Museum in 1975 and has been exhibited occasionally, including at the Daytona International Speedway in 1980 and at the then-newly opened Petersen Automotive Museum in Los Angeles, California, in 1995.

The pursuit of land speed records levelled up with the use of jet engines to achieve supersonic speeds.
The pursuit of land speed records levelled up with the use of jet engines to achieve supersonic speeds.
Image: SUPPLIED

It remains a visually commanding and technologically fascinating piece of speed record history that is now available for private acquisition for the first time. The car was built using a Coke bottle-shaped fuselage and measuring more than 10m in length. It produced a stated 15,000oz of thrust with the afterburner activated.

Goodyear provided the sponsorship and special tyres, and the forged aluminium wheels and disc brakes, while an aerospace-style drag chute provided additional stopping power.

It is expected to sell for $500,000-$1,000,000 (R9.2m -R18.3m.)


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