Tech • AI • Robotics • Game
Tesla Roadster 2.0's Crazy Secret Just Leaked! Flying Mode Revealed!
9.4/10TL;DR
A newly granted Tesla patent for a four-fan aerodynamic system shows a plausible way to add downforce at very low speed, addressing the traction problem behind the company’s claimed sub-1-second 0-60 mph target.
KEY POINTS
Patent targets the grip problem
Extreme electric acceleration is limited less by motor torque than by how much force the tires can transmit to the road. For a claimed 0-60 mph time of under 1 second, the central challenge is traction at launch, when conventional aerodynamic downforce is still weak because the car is barely moving.
Four fans in the rear diffuser
On September 29, 2026, Tesla was granted US12746987B1, based on filings from 2023 and 2024, for an electric fan car system. The design places an intake under the rear of the car, between the rear wheels, feeding air through a curved duct to a broad rear diffuser outlet containing four axial electric fans separated by vertical structures.
How the system works
The fans pull air from beneath the car and expel it rearward, creating a low-pressure zone under the floor. That effectively sucks the vehicle toward the pavement, increasing tire load before normal wings or diffusers become effective. The concept directly addresses launch traction, though the patent does not provide enough data to confirm any specific acceleration figure.
A proven idea with unusual roots
Fan-generated downforce has appeared before in high-performance vehicles. Historical examples include the Chaparral 2J in 1970 and the Brabham BT46B, which won the 1978 Swedish Grand Prix with Niki Lauda before the concept fell out of favor in competition. More recent applications include the Gordon Murray T.50 and the electric McMurtry Speirling.
McMurtry offers the clearest modern comparison
The McMurtry Speirling is especially relevant because it uses fan downforce in a modern EV format. McMurtry has reported about 2,000 kg of aerodynamic load, including at very low speeds, and the car set the all-time Goodwood Hillclimb record in 2022. That does not prove Tesla can match the result, but it shows the physics can work.
Tesla’s design focuses on integration
Unlike exposed fan systems, Tesla’s patent integrates the hardware into the rear aerodynamic structure. The underbody, ducting, fans, diffuser outlet, and inclined rear panel are designed to work as one airflow management system, likely to reduce drag, packaging issues, noise, and vulnerability to dirt or debris in a road car.
Airflow control is a key engineering hurdle
One of the patent’s more revealing details is Tesla’s concern that the central intake could pull air from behind the car instead of from underneath it. To prevent wasted energy, the patent describes an alternative layout with two smaller side intakes flanking the central opening, intended to maintain the correct airflow path and preserve downforce efficiency.
Battery demand remains an open question
The fans would run from the vehicle’s high-voltage battery and tie into onboard control systems, with either automatic or driver-triggered activation. But the patent does not disclose fan power draw, operating speed, pressure targets, or duty cycle, leaving major unknowns about energy consumption, thermal load, and real-world practicality.
Roadster speculation is intensifying
The patent drawings depict a Model S, which was discontinued in April 2026, but patents often protect concepts rather than final applications. That has sharpened attention on the upcoming Roadster, especially because promotional imagery has shown four prominent rear openings that could plausibly align with fan outlets, though no link has been confirmed.
Possible pairing with an active rear wing
Tesla has separately patented a hidden or retractable rear wing capable of up to 700 kg of downforce. If paired with the fan system, the fans could boost grip during launch, braking, and low-speed cornering, while the wing and conventional aerodynamics take over as speed rises, creating a more actively managed high-performance platform.
CONCLUSION
The patent does not prove that Tesla will deliver a sub-1-second Roadster or that the production car will use four fans. It does show that the company is pursuing a technically credible solution to the hardest part of extreme EV acceleration: keeping the tires attached to the road.
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