Tesla Roadster Patent Shows A Hidden Wing That Can Make 1,543 Pounds Of Downforce

A new Tesla Roadster patent describes a two-piece rear wing that shifts between low drag, high downforce, and crash-safety positions.

Photo by: USPTO

By: Brian Potter

Sep 28, at 10:17am ET

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The patent describes a two-piece active rear wing that sits flush with the car when stowed.
The patent lists a high-downforce mode producing up to 1,543 pounds above 100 mph.
The wing mechanically retracts on a central or corner impact until its trailing edge lines up with the car's rear.

Tesla's next Roadster is due to break cover on October 1, and a freshly published patent gives the clearest look yet at what might be hiding under its bodywork. The filing describes a two-piece active rear wing built to sit flush with the car when it is not needed.

The application, titled "Deployable and Active Rear Wing Assembly with Safety Features," surfaced through the US Patent and Trademark Office on September 24, 2026. It names David Lemire and James Michael Arthur Crook as inventors.

Gallery: Tesla Roadster Active-Aero Patent

Source: USPTO

A Hidden Two-Piece Wing With A Stowed Mode

The wing assembly splits into a main element and a smaller leading-edge slat, held apart by 3 to 15 millimeters (0.1 to 0.6 inches) via a four-bar linkage, according to the filing. That gap lets air pass between the two pieces once deployed, shaping how the wing bites into the airflow.

Tesla describes the whole assembly moving from fully stowed to fully deployed in under three seconds. Angle changes happen in under a quarter of a second once it is out.

Deployment is not left purely to driver choice. The patent describes the system having access to speed, steering angle, braking data, GPS location, and autonomous-driving sensor inputs to decide when the wing should move and how far. It also covers an automatic switch into a track-oriented mode based on location.

The document does not confirm the wing will reach production, treating it strictly as a proposed design rather than a locked-in spec for the Roadster.

Tesla Roadster Active-Aero Patent illustration

Photo by: USPTO

Zero Drag One Moment, 700 kg Of Downforce The Next

The numbers in the filing vary sharply depending on mode. Tesla's patent lists a Formula 1 DRS (drag reduction system)-style setting that produces 0 kg of downforce, aimed at cutting drag on straights, sitting opposite a high-downforce mode good for up to 700 kg (1,543 pounds) at speeds above 100 mph.

Deploying the wing out of DRS adds 350 drag counts, per the filing. Rotating it back into the low-drag position cuts 250 counts versus the deployed-but-undeployed state.

That aerodynamic tradeoff is tied to a mechanical failsafe. The patent states the wing "retracts until its trailing edge lines up with the rear of the car on a central or corner impact," using both sensor triggers and physical retraction to pull the structure back into the bodywork during a crash.

Tesla filed this application in August 2025, and it appeared in the public database in September 2026. Whether any of it appears on stage in Waco remains unconfirmed until the October reveal event itself.

Tesla Roadster Prototype

Photo by: Tesla

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Motor1's Take: The patent points to a Roadster that pushes further into track performance than Tesla's earlier sports models. A wing that can swing from low drag to 1,543 pounds of downforce gives engineers room to chase straight-line speed without giving up corner grip.

It also shows how quickly active aero is spreading. Ferrari is exploring similar ideas with hardcore V12 hybrids and Tesla has already tested an articulating wing on the Model S Plaid. If even a slice of this concept reaches production, the next Roadster could push battery-electric aero closer to what modern race cars do with their wings.