A newly released Tesla patent (US12-337-920-B1) reveals that the upcoming Next-Gen Roadster might receive an aerodynamic technology so powerful that it was once banned in Formula 1.
The technology generates massive downforce without large external wings – and could thus be crucial for the promised, record-breaking performance of the Roadster.
Origin: Ground Effect & „Fan Car“
In 1978, the legendary Brabham BT46B in F1 used a huge fan to suck air from under the car, creating a vacuum. The car literally „stuck“ to the track – and was so superior that the technology was banned after just one race.
Tesla's modern implementation
Instead of a fan, Tesla uses a large internal air duct system that intakes air at the front and expels it at the rear.
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Venturi effect: The duct narrows and widens again, accelerating the air and thus creating low pressure → strong downward suction.
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Dual function: The air flows through a heat exchanger, efficiently cooling the battery and drivetrain.
The goal: More grip with simultaneously less air resistance – without large rear spoilers.
Connection to the SpaceX package
The Roadster is already set to be equipped with the SpaceX upgrade that uses cold gas thrusters for extreme acceleration. Combined with the new downforce technology, the vehicle could achieve cornering speeds and performance that are currently unique.
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