According to automotive information site Driven, the McMurtry Speirling is an electric single-seat vehicle weighing about 1,000 kilograms and producing 745 kilowatts of power, with a fan system that generates a maximum downforce of about 2,000 kilograms. Unlike conventional designs that rely on speed to generate downforce, Speiring’s system generates steady downforce at rest.
Vehicle upside-down demonstration: a complete reversal of common-sense physics
Thomas Yates, co-founder of McMurtry Speirling Automotive, performed the demonstration on a customized platform. He started the vehicle on the platform, activated the fan system, and rotated the platform 180 degrees. During the rotation, the vehicle stayed in place without any mechanical support. After fully inverting the platform, Yates drove the vehicle a short distance and then drove off once the platform returned to its original position.
Technology Traceability: The Modern Rebirth of the “Fan Car” Concept
Fan-assisted downforce comes from the banned 1970s “fan car” idea (like the Chaparral 2J), which used side skirts and a low chassis to create a vacuum under the car. This helped it speed up from 0 to 100 km/h in just 1.4 seconds, even though it made a lot of noise and kicked up dust. The recent upside-down driving test was short, but the company says it was just to show the idea works, and longer tests may come later. This 1,000-horsepower electric car McMurtry Speirling, shows that with vacuum technology, even the rules of physics can seem to change.