The Tesla Roadster Is Far From The First Car To Use Fans For Downforce

Tesla demonstrated the long-awaited next-gen Roadster with some wild stunts, beginning with making the automotive drive up a C-shaped ramp and cease in the midst of the half perpendicular to the bottom. It drove sluggish sufficient and stopped lengthy sufficient to make it appear like it was hanging the other way up. After that, the Roadster jumped off the ramp, flipped itself upright, floated a bit and landed safely on the bottom. 

On its website, Tesla defined that the Roadster defied gravity through the use of a multi-mode fan and floor sealing system that acts as a “downforce generator.” It pulls air from beneath the car and offers the suction wanted to carry the automotive the other way up, at any pace. The automaker says these powered followers, together with the car’s retractable rear wing, present the required downforce, or the pressure that pushes a car into the bottom.

The new Roadster, nevertheless, is not the primary automotive that makes use of a fan system to generate downforce. When Tesla unveiled the Roadster, McMurtry Automotive responded with a cheeky “Welcome to the membership” on Instagram, with a video of its Spéirling hanging the other way up from a platform. McMurtry’s suction expertise referred to as Downforce-on-Demand has two followers that suck air out from beneath the automotive. And even earlier than Spéirling, different automobiles have employed followers for downforce. 

Way again in 1970, American racing drivers Jim Hall and Hap Sharp entered the Can-Am Championship collection with a automotive that seemed like a field with wheels. It was referred to as the Chaparral 2J, a prototype powered by modified 7.6-liter Chevrolet V8 engine. According to Revs Institute Automedia, the car’s suction expertise began because the “Suspension Test Vehicle” venture at Chevrolet, till Hall requested its developer Don Gates to affix his crew. 

The Chaparral 2J’s suction system had two followers tailored from a army tank engine. It had a “skirt” produced from clear polycarbonate sheets that created an enclosed space beneath the automotive. That allowed the followers to generate 1.25 g to 1.5 g of suction because the followers pulled in air from that enclosed house. To be aware, Tesla says the Roadster is able to producing as much as 2 gs of downforce.

Then there was the Brabham BT46, often known as the “Fan Car,” which was an F1 racing automotive designed by South African-British racer Gordon Murray for the 1978 season. It designers put in a fan on the car and claimed it was primarily for cooling to fulfill F1 laws, however they took inspiration from the Chaparral 2J and Tyrrell 008, one other F1 automotive with a fan that finally did not work out.

Specifically, the BT46 had a collection of clutches that related to a big single fan on the rear. It had skirts, similar to the Chaparral 2J, that lined the gaps between the underside of the automotive and the bottom. This allowed the fan to extract air from beneath the automotive, making a suction. In BT46’s case, the quicker the car, the stronger the suction impact. The Brabham BT46 solely raced as soon as on the 1978 Swedish Grand Prix and gained the occasion.

McMurtry’s Spéirling is an electrical sports activities automotive that the automaker unveiled in 2025. The firm demonstrated it at McMurtry headquarters in England, the place the car was proven to have the ability to cling the other way up to a rotating platform utterly unsupported. 

McMurtry Automotive unveiled the ultimate manufacturing model of the Spéirling Pure in July 2026. Like the Roadster, Spéirling’s expertise can generate sufficient downforce that enables it to cling to a floor at any pace, even at a standstill. This offers the car the ability to nook at greater than 3g, in keeping with the corporate.

The firm will produce solely 100 of the automobiles, with costs beginning at $132,300, and the primary buyer deliveries are anticipated to exit out earlier than the top of this 12 months. Meanwhile, Elon Musk stated the Roadster is going into production in 2028, with reservations now open. The base Roadster will price you $50,000 to order, whereas the “Thrust” trim degree with the the suction system and acceleration thrusters prices $250,000 to order.