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How the Tesla Roadster Flips Upside Down: The Physics Explained

Tesla's new Roadster hung upside down on a ramp, flipped in mid-air and landed. The fans, the compressed air thrusters and Newton's laws, stage by stage, in plain English.

Allen Anant Thomas

Allen Anant Thomas

November 2, 2026

12 min read
Business News
How the Tesla Roadster Flips Upside Down: The Physics Explained

On 15 October 2026, Tesla drove its new Roadster up a curved ramp until it hung upside down. Then it left the top of the ramp, rolled itself upright in mid-air and came down on its wheels in a cloud of smoke. Later it hopped over a row of five Teslas, a Semi truck included.

It looked like a render. Elon Musk did it in front of a live crowd at SpaceX's rocket test site in McGregor, Texas, and said the audience was there "to prove that it's not AI."

None of it needs new physics. Air pressure, Newton's third law and a bit of rotation explain every move. This explainer walks through the stunt stage by stage, in plain English, shows where each number comes from and what is still only Tesla's claim, and tells you where to find each moment in Tesla's own demo stream.

Short answer: The Tesla Roadster hangs upside down because fans pull the air out from under the car, so normal air pressure presses it onto the track with up to 2 G. It flips because electric valves fire jets of stored compressed air on one side, and Newton's third law turns the car.

  • Suction: Tesla's engineer Lars Moravy says the fan system can pull up to 2 G, twice the car's own weight.
  • Thrust: about 600 litres of compressed air (roughly 250 kg) in two carbon-fibre tanks feed 10 cold-gas nozzles.
  • The live run did 0 to 60 mph in 0.81 seconds, as announced on stage. That works out to about 3.4 G on average.
  • The stunts were programmed into the car. The robot in the driver's seat was a prop, and production is planned for 2028.
Prefer video? Watch the short version, or open it on Instagram or YouTube.

What Tesla showed, and what is confirmed

The event was streamed live on Tesla's YouTube channel. Four moves are in Tesla's footage:

  1. The car climbs a C-shaped ramp and stops upside down near the top.
  2. On a second run it launches off the top of the ramp and rolls upright in the air.
  3. Jets under the car slow its fall, so it eases onto the pavement instead of slamming down.
  4. It lifts itself over a Cybercab, a Cybertruck, a Semi, a Model Y and a Model 3.

Everything past the footage comes from Tesla. On stage, vice president of vehicle engineering Lars Moravy gave the 2 G suction figure, the 600 litres of compressed air and the 10 nozzles. The 0.81-second sprint was announced from the stage after the live run. TechCrunch, Engadget and Electrek credit these numbers to Tesla. None of them tested them independently.

Two details matter for how you read the footage. Engadget reported that the stunts were programmed into the car, and on stage Tesla said plainly that the Optimus robot in the driver's seat "is not a real human."

Five ideas that explain the whole stunt

You only need five pieces of school physics. Each one does a different job in the stunt.

  • Weight and G. One G is the pull of Earth's gravity, about 9.81 metres per second squared. "2 G of suction" means a push twice as strong as the car's own weight.
  • Air pressure. Air has weight, and the air above you presses on everything it touches. You do not feel it because it presses from every side at once.
  • Grip. A tyre's grip rises with how hard it is pressed onto the surface. Press it down twice as hard and it can resist roughly twice the sideways or forward force before it slides.
  • Newton's third law. Every push comes with an equal push back. Throw gas out of a nozzle one way and the nozzle is pushed the other way.
  • Torque. A push through the middle of an object moves it. A push off to one side also turns it, and the farther from the middle, the stronger the turn.

Stage 1: Climbing the ramp

A car driving fast around the inside of a curve presses into the track. To follow a curve, something has to keep pushing the car toward the centre of that curve, and the push needed grows with the square of the speed (per kilogram of car, it is the speed squared divided by the curve's radius). Here, the track supplies that push. At the top of a loop, a fast enough car needs more push toward the centre than gravity alone gives, so the track keeps pushing on it and it stays on.

That works only while the car is moving fast. Tesla's car did something a speeding car cannot: it stopped at the top. Speed was not holding it there.

It also explains why Tesla used fans instead of wings. Race-car wings make downforce, extra push onto the tyres, but that force grows with the square of the speed and needs a minimum speed to do much. At a standstill a wing makes nothing. A fan pulls air out from under the car at any speed, including zero.

Stage 2: Hanging upside down, standing still

Air is heavier than it feels

Above every square centimetre of ground sits a column of air with a mass of about 1 kilogram. Spread over a square metre, that is roughly 10 tonnes pressing down. A car normally has air pressure on its top and its bottom, and the two cancel out. Tesla's trick is to break that balance.

Fans and a seal

Tesla calls it a "multi-mode fan and ground sealing system." Fans under the car pull air out of the space between the floor and the track. A seal around the edge stops fresh air rushing back in. Now there is less pressure underneath than on top, and the difference pushes the car onto the surface.

The force is the pressure difference times the floor area, and small differences add up. Our own arithmetic, not a Tesla figure: lowering the pressure under a car by just 5 percent leaves about half a tonne of push on every square metre of floor. A car's floor covers several square metres. Tesla has not published the car's weight, floor area or the pressure under it, so we cannot work out the exact force.

Why 2 G is enough

Moravy said the system can "pull up to 2 Gs." Now turn the car upside down. Gravity pulls it away from the ramp with 1 G. The suction pushes it onto the ramp with up to 2 G. The suction wins by a full 1 G, so the car stays on the ramp even with its wheels stopped. Engadget reported exactly that: on the first run the car stopped upside down on the ramp.

The same press also stops the car sliding. Near the top of a curved ramp, part of the car's weight pulls it along the surface, back down the curve. The tyres resist that with grip, and grip rises with how hard they are pressed on. Fan suction presses them on hard even when the car is not moving.

In Tesla's demo stream, at about 8 minutes, Moravy explains the fan system and the 2 G figure himself.

Racing did this first

Fan suction is not new. The Chaparral 2J raced in the 1970 Can-Am series with two rear fans and plastic skirts sealing it to the ground, good for 1.25 to 1.5 g of downforce. It was banned after one season. In 1978 the Brabham BT46B fan car won the Swedish Grand Prix with Niki Lauda, its only race before Formula One outlawed fan cars. Gordon Murray, one of its designers, later put a 40 cm fan into the back of his T.50 road car.

What is new here is the strength. Not a Tesla App, reporting from the event, put tyres alone at about 1.26 G of cornering grip and the suction system at more than 2 G.

Stage 3: Letting go and flipping in the air

The moment it leaves the ramp

Once the car leaves the top of the ramp, no track holds it. From then on, its centre follows the arc set by its speed and gravity, like any thrown object, whether it spins or not. Apart from a little air drag, only the thrusters can change that path. Tesla has not described the exact order in which the fans switch off and the nozzles fire at that moment, so the stages below explain the forces, not Tesla's control software.

Cold gas, stored the way a rocket stores it

Tesla's post on X said every usable void in the car is packed with carbon fiber overwrapped pressure vessels (COPVs), the same kind of tank SpaceX uses. On stage, Moravy described 10 thrusters connected to 600 litres of compressed air. Not a Tesla App reported two tanks holding about 250 kg of air, and that the car can refill its own tanks, so no special propellant is needed. In Tesla's demo stream, at about 12 minutes, Moravy walks through the tanks and the nozzles.

A cold-gas thruster is the simplest rocket there is: a tank of pressurised gas, a valve and a nozzle. Nothing burns. Open the valve and the gas rushes out of the nozzle at high speed.

Newton's third law does the pushing

Push gas out of a nozzle one way and the nozzle, and the car bolted to it, gets pushed the other way. The car does not push against the ground or the air around it. It pushes against the gas it throws out, which is why the same trick works in space.

Fire one side and it rotates

A puff from a nozzle near the edge of the car pushes off-centre, so it turns the car as well as moving it. The turning effect, torque, is the force times its distance from the centre. It is the reason you push a door near its edge and not near the hinges. Nozzles placed far out on the car give the most turn for each puff of air.

Spacecraft engineers call this a reaction control system. Thrusters give small pushes in any direction and the torque to control rotation in all three ways a vehicle can turn: roll, pitch and yaw. Choosing which way the vehicle points is called attitude control.

Stopping the spin is half the job

A spinning object keeps spinning until a torque stops it. This is Newton's first law for rotation. So rolling the car upright takes two moves: fire one side to start the roll, then fire the opposite side to stop it the moment the wheels face down. Stop too early and the car lands on its side. Stop too late and it over-rotates.

That is why the valves matter. Tesla says they run on all-electric actuators that make "micro adjustments within a fraction of a second." A car in the air has to correct itself many times in the time it takes you to blink.

The idea is older than this car. Musk first described it in a tweet on 9 June 2018: a SpaceX option package for the Roadster with about 10 small rocket thrusters. In September 2018, Bosch tested a cold-gas thruster that pushes a sliding motorcycle sideways to stop it slipping further. Space has used the same idea for decades. NASA's Manned Maneuvering Unit, the jetpack astronauts flew in 1984, used 24 small nitrogen thrusters. Falcon 9 first stages use nitrogen cold-gas thrusters to control their attitude as they come back down to land. The Harrier jump jet does a version of it with thrust diverted from its engine, to stay steady at speeds too slow for its wings.

Stage 4: Slowing the fall and landing

After the roll, the car is still falling. To slow a fall, the push upward has to be stronger than the car's weight. Nozzles on the bottom fire down, which pushes the car up, and the fall slows. Engadget reported that the thrusters slowed the descent enough for the car to ease down and land, and the replay shows it settling into its own smoke.

The catch with cold gas

Cold gas is safe and simple but weak. It has far lower specific impulse (a measure of push per amount of propellant) than engines that burn fuel. Nitrogen gas measures about 73 seconds. The Space Shuttle's RS-25 engine, which burns hydrogen, reaches 453 seconds in a vacuum. Its thrust also drops as the tank pressure falls. That is why it suits short bursts: a roll, a hop, a soft landing. Tesla has not said how long the car can stay in the air or how much air each move uses, and TechCrunch pointed out that gap.

Stage 5: Hopping over five cars

The jump over the Cybercab, Cybertruck, Semi, Model Y and Model 3 uses the same physics as the landing. Fire the bottom nozzles hard enough and the upward push beats the car's weight, so it rises. Ease off and gravity takes over, and the same downward jets can soften the touchdown. Every hop spends compressed air, so the size of the tanks limits how much the car can do before it refills them.

Why the thrusters make it so fast

A normal car can only accelerate as hard as its tyres can push against the road. Push harder and the tyres spin. Suction raises that limit, because pressing the tyres down harder gives them more grip. The thrusters skip the limit entirely, because they push against the gas they throw out, not the road. Tesla says they push with "four to five times the force the tires can handle."

The live run was announced at 0.81 seconds from 0 to 60 mph. Our arithmetic shows how violent that is: 60 mph is about 26.8 metres per second, and reaching it in 0.81 seconds means an average of about 33 metres per second squared, or roughly 3.4 G. One caution: the stream's own timer graphic read 1.00 during the run, and TechCrunch reported the time as one second. In Tesla's demo stream, the 0.81-second announcement comes at about 18 and a half minutes.

Tesla's targets for the production trims, as reported by Electrek and Not a Tesla App:

TrimWhat it adds0 to 60 mph targetReservation
PerformanceActive aero and the suction systemUnder 1.6 s$50,000
ThrustRear cold-gas thrusters for accelerationUnder 0.9 s$250,000
RocketFull flight system, 10 thrusters, one seatUnder 0.59 sInvite only

For scale, Tesla promised 1.9 seconds when it first showed this Roadster in 2017.

What is still unconfirmed

  • No price. Only reservation amounts were given, and Musk did not name a price on stage.
  • No independent test of the 2 G, 0.81 s, 230+ mph or 300+ mile figures. All are Tesla's numbers.
  • Road legality. Electrek reported that Tesla's own page says the Rocket is not road-approved, and Musk said he was "not sure it's necessarily legal in all jurisdictions" for owners to have a kickflip-capable car.
  • Safety. TechCrunch quoted Musk saying safety "is not the main goal" with this car, and noted that COPV tanks were at the root of more than one SpaceX rocket explosion.
  • Timing. Production is planned for 2028; in Tesla's demo stream, Musk says so at about 21 minutes. The Roadster was first shown in 2017 and Musk delayed it in 2020, 2021, 2023 and 2024.

Watch each moment in Tesla's demo stream

Tesla's full replay runs well past the stunts, so here is where to look. Each link opens the stream at that moment.

Prefer a one-click version? The same links are on our free page with every link.

Frequently asked questions

How does the Tesla Roadster hang upside down?

Fans under the car pull the air out from between the floor and the track, and a seal stops new air rushing back in. The higher air pressure on top then presses the car onto the track. Tesla's engineer Lars Moravy says it can pull up to 2 G, twice the car's weight, which beats the 1 G of gravity pulling it off.

Why does the Roadster use fans instead of wings?

Wings only make downforce when the car is moving, and the force grows with the square of the speed. The Roadster stopped upside down at the top of the ramp, where a wing would make nothing. A fan pulls air out from under the car at any speed, including standing still.

How does the Tesla Roadster flip in the air?

Electric valves open cold-gas nozzles fed by about 600 litres of compressed air. The gas shoots out one way and pushes the car the other way (Newton's third law). Firing nozzles on one side turns the car, and firing the opposite side stops the turn, which is called attitude control.

Is the 0.81-second 0 to 60 time real?

It was announced on stage after the live run, so it is Tesla's figure. The stream's own timer graphic read 1.00 and TechCrunch reported one second. Nobody outside Tesla has tested it yet.

How much does the new Tesla Roadster cost and when is it coming?

Tesla has not announced a price. Reservations are $50,000 for the Performance trim and $250,000 for Thrust, and the full-flight Rocket version is invite only. Musk says production starts in 2028.

Not confirmed. Electrek reported that Tesla's own page says the Rocket version is not road-approved, and Musk said he was not sure a kickflip-capable car is legal in all jurisdictions.

Sources

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