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Tesla Roadster’s ‘SpaceX package’ with rocket thrusters could actually work
This weekend proved to be a fruitful one for Elon Musk’s Twitter followers and fans of the next-generation Tesla Roadster, as the billionaire entrepreneur discussed, in honest-to-goodness seriousness, how the electric car maker would utilize SpaceX technology to make the upcoming all-electric supercar an absolute monster on wheels. Needless to say, there was quite a lot to take in.
Musk started off his Twitter discussion on the next-generation Roadster by stating that the car will feature ~10 rocket thrusters that are “arranged seamlessly around (the) car.” Musk further noted that the thrusters would “dramatically” improve acceleration, braking, and cornering, to the point that the Roadster would be able to fly — a reaffirmation of his previous statement referring to the vehicle having the capability to fly “short hops.”
Musk noted that Tesla would be using SpaceX’s Composite Overwrapped Pressure Vessel (COPV), a container consisting of a thin, non-structural liner wrapped with a structural fiber composite. COPVs are designed to hold a fluid under pressure, and are used by SpaceX’s first-stage rocket boosters during re-entry and landing. Musk further explained the use of SpaceX’s technology in later tweets.
SpaceX option package for new Tesla Roadster will include ~10 small rocket thrusters arranged seamlessly around car. These rocket engines dramatically improve acceleration, top speed, braking & cornering. Maybe they will even allow a Tesla to fly …
— Elon Musk (@elonmusk) June 9, 2018
While the idea of using rocket propulsion to enhance the performance of an all-electric supercar might seem to be well into the realms of science fiction, using COPVs for the next-gen Roadster is actually pretty feasible, at least from a technical standpoint. SpaceX’s COPVs have operating pressures of around 350 bars (5,000 psi) and too powerful for a land vehicle. If Tesla installs a similar version of SpaceX’s upper stage thrusters that are used in guiding rockets, rear-mounted devices could store just enough compressed air to provide Tesla’s next-gen Roadster an additional boost in acceleration for a short duration.
Note, gas contained would be ultra high pressure air in a SpaceX rocket COPV bottle. The air exiting the thrusters would immediately be replenished whenever vehicle pack power draw allowed operation of the air pump, which is most of the time.
— Elon Musk (@elonmusk) June 10, 2018
Rocket thrusters placed in front of the vehicle that provides thrust opposite of the Roadster’s direction of travel, at least in concept, could help the electric car’s braking capability, while thrusters placed along each side of the vehicle can help in cornering by providing lateral force. In order to accomplish this, however, Tesla would have to carefully balance the weight of components from the upgraded SpaceX package – Musk noted that the vehicle would sacrifice its rear seats from the standard 2+ 2 configuration to accommodate the additional hardware – with output from the rocket thrusters to maximize the vehicle’s performance. Onboard electric air pumps would repressurize the space-grade containers when they were depleted, making for repeat fun, at least in a theoretical sense. Musk also stated that SpaceX COPVs that will be used for the next-generation Roadster will be durable, and be “literally bulletproof.”
Exactly. Total energy stored even in ultra compressed air is low vs battery, but power output is insane. The composite overwrapped pressure vessel (COPV) is most advanced ever made. It’s what SpaceX is qualifying for NASA crewed missions. Extremely robust — literally bulletproof.
— Elon Musk (@elonmusk) June 10, 2018
Overall, Musk reiterated that the next-generation Tesla Roadster is designed to be the best car in the industry when it gets released. During his tweetstorm, Musk mentioned that with the all-electric supercar, Tesla is attempting to beat ICE vehicles on “every performance metric;” thus transferring the “halo crown effect” gas cars have as the top speed standards in the automotive market.
New details about Tesla’s next-generation Roadster have been released by Elon Musk lately. The SpaceX option for the vehicle was announced during the 2018 Annual Shareholder Meeting, and not long after that, Musk also revealed that the vehicle would feature an “Augmented Mode” designed to “enhance human driving ability,” thereby providing assistance to drivers who would be operating the insanely powerful supercar.
During the unveiling of the next-generation Tesla Roadster, Elon Musk noted that the purpose of the all-electric supercar is to give a “hardcore smackdown” to gasoline-powered cars. The specs of the vehicle that were unveiled then, which are representative of the all-electric supercar’s base trim, are already record-breaking, including a 0-60 mph time of 1.9 seconds, a quarter-mile time of 8.9 seconds, a top speed of over 250 mph, 620 miles of range thanks to a 200 kWh battery, and 10,000 Nm of torque. With the Roadster’s SpaceX option, the all-electric supercar could very well establish a new class of vehicles that lie beyond the hypercar echelon.
SpaceX is preparing for the 13th integrated flight test of its Starship system, with a targeted launch as early as Thursday, July 16. The 90-minute launch window opens at 5:45 p.m. CT from Starbase in South Texas.
This comes roughly seven weeks after Flight 12 on May 22, underscoring the company’s accelerating pace in its rapid development campaign. The mission will use the latest Starship and Super Heavy V3 vehicles equipped with Raptor 3 engines. Booster 20 will attempt a controlled boostback burn, followed by a splashdown in the Gulf of Mexico, while Ship 40 will follow a suborbital trajectory.
Starship’s thirteenth flight test is preparing to launch as early as Thursday, July 16 → https://t.co/Rp7VwBzpWx pic.twitter.com/jdpFlQUEpF
— SpaceX (@SpaceX) July 11, 2026
Key objectives for Flight 13 will include demonstrating reliable stage separation, engine performance under various conditions, and controlled reentry.
A major milestone for Flight 13 is the first deployment of 20 next-generation Starlink V3 satellites. These satellites feature advanced laser links for inter-satellite communication, deployable solar arrays, and onboard cameras, six of which will capture imagery of Starship’s heat shield during flight.
Several heat shield tiles on Ship 40 will be painted white to serve as imaging targets, while additional experiments test upgraded tiles on aft flaps, modified attachments on the aft skirt, and load-sensing tiles to measure stresses. The upper stage will also attempt a single Raptor engine relight in space before a targeted splashdown in the Indian Ocean.
These tests build directly on lessons from Flight 12, which introduced the V3 configuration but encountered issues including a booster flip anomaly during boostback and an engine-out event on the ship. Hardware and software modifications on Booster 20 and Ship 40 aim to improve engine relight reliability, startup sequencing, and overall robustness.
Next Starship launch aiming for Thursday https://t.co/SajPPd4pdb
— Elon Musk (@elonmusk) July 12, 2026
The short interval between Flights 12 and 13 highlights SpaceX’s iterative approach. Elon Musk has repeatedly emphasized that Starship launches will become “incredibly common” in the coming years.
The company envisions scaling to rates as high as one launch per hour within 4-5 years, potentially enabling thousands of flights annually. Such cadence is essential for Starship’s goals: establishing orbital refueling for lunar and Mars missions, deploying massive satellite constellations, and making life multiplanetary.
With each flight, Starship edges closer to full reusability and operational maturity. Success on July 16 would mark another step toward routine access to space and the ambitious vision of humanity becoming a spacefaring civilization.
Tesla shared a striking video showcasing the decommissioning of the original Model S and Model X assembly line at its Fremont Factory in Northern California. Completed in just 46 days, the teardown involved heavy machinery dismantling concrete pits, removing robotic arms and conveyors, and clearing the space for new production.
The post, captioned “End of an era,” captured both the end of a historic chapter and Tesla’s aggressive pivot toward its next major initiative, Optimus.
End of an era: Decommissioning the original Model S & X assembly line in just 46 days pic.twitter.com/kGEdfhl62h
— Tesla Manufacturing (@gigafactories) July 10, 2026
The decision to retire the Model S and Model X originated during Tesla’s Q4 2025 Earnings Call in late January 2026. CEO Elon Musk announced that production of the company’s flagship sedan and SUV would wind down by the end of Q2 2026, describing it as bringing the programs to an “honorable discharge.”
Custom orders ceased around early April 2026, with the final vehicles rolling off the line in early May. A special signature delivery ceremony on May 20 marked the emotional close for these vehicles, which had defined Tesla’s early success and luxury EV segment since the Model S launch in 2012.
The primary reason for tearing down the lines was to repurpose the valuable factory floor space for high-volume production of Tesla’s Optimus humanoid robot. Musk had indicated on Earnings Calls that the Fremont S/X line would be replaced by a dedicated Optimus manufacturing line targeting a capacity of one million units per year.
This move aligns with Tesla’s broader strategic shift from traditional vehicle manufacturing toward robotics and artificial intelligence, leveraging the company’s expertise in autonomy, AI training, and high-volume production.
Optimus, Tesla’s general-purpose humanoid robot, is designed to perform repetitive or dangerous tasks in factories, warehouses, and eventually homes. Powered by Tesla’s AI and Neural Networks, it aims to be a versatile, affordable platform. Production of Optimus Gen 3 is already underway in limited form at Fremont, with full-scale output on the converted line expected to begin in late July or August.
Tesla is targeting rapid scaling, with internal ambitions pointing toward tens or even hundreds of thousands of units annually by the end of 2026.
Longer-term, Tesla is constructing a much larger second-generation Optimus facility at Giga Texas, with potential capacity reaching millions of units per year. The company views Optimus as a transformative product that could eventually surpass its automotive business in scale and value, enabling widespread deployment of useful robots across industries. CEO Elon Musk has even predicted it would be the most popular product of all-time.
As one era closes at Fremont, another is rapidly taking shape.
Elon Musk posted a candid admission on his social media platform X on June 9, declaring that he had been “clearly wrong” about Anthropic. The statement marked a notable reversal from his earlier skepticism toward the AI company.
In September, Musk had written, “Winning was never in the set of possible outcomes for Anthropic,” reflecting his view at the time that the startup had lacked the foundation or even the trajectory to succeed in what is an incredibly intense race for advanced artificial intelligence.
Musk’s latest post came amid discussion of Anthropic’s reliance on external compute resources. He praised the company’s progress, stating that Anthropic is “obviously currently the leader in AI” and that “no company has released a model as good as Mythos/Fable,” with expectations of a strong follow-up in Mythos 2.
The tone shifted dramatically from dismissal to acknowledgement of superior performance.
I was clearly wrong about Anthropic. They are obviously currently the leader in AI. No company has released a model as good as Mythos/Fable and they will undoubtedly have Mythos 2 ready soon.
And I would never cut them off in a way that hurt them badly, even as a competitor.…
— Elon Musk (@elonmusk) July 9, 2026
The context of Musk’s comments added significance. Anthropic has been operating under a recent compute deal with SpaceXAI, Musk’s AI infrastructure-focused venture. The pair entered a short-term GPU lease agreement initiated in May, providing Anthropic access to critical computing power for training and deploying its frontier models.
SpaceXAI signs agreement with Anthropic for massive AI supercomputer access
Some observers had speculated that Musk could leverage this dependency to disadvantage a rival. Musk directly addressed the possibility, writing, “I would never cut them off in a way that hurt them badly, even as a competitor. That’s not my style.”
To support his commitment to ethical competition, Musk referenced concrete examples from his other companies. Tesla famously open-sourced its entire portfolio of electric vehicle patents in 2014. The move was designed to accelerate the global adoption of sustainable transportation technology rather than protect proprietary advantages.
Tesla also made its Supercharger network available to competing electric vehicle manufacturers, transforming what could have remained an exclusive charging ecosystem into a shared infrastructure that benefits the broader industry and reduces barriers for EV adoption.
Musk further pointed to SpaceX’s practices, noting that the company launches satellites for competing commercial systems “with no increase in price or use of unfair terms.” He extended the principle to his social platform, observing that “even my worst enemies attack me on this platform,” underscoring preference for open discourse over retaliation.
These examples have illustrated Musk’s long-standing philosophy that long-term technological progress is best served by open competition and infrastructure sharing rather than leveraging market power to stifle rivals. In the fast-evolving AI sector, where compute resources and model capabilities determine leadership, Musk’s stance suggests a willingness to compete on innovation and performance alone.
Musk’s admission arrives as SpaceXAI itself advances its own frontier models while maintaining business relationships across the ecosystem. By publicly correcting his earlier assessment and reaffirming principles of fair play, Musk highlights a model of competition that prioritizes advancement of the field over short-term tactical advantages.
SpaceX reveals Starship Flight 13 launch date
Tesla shows rapid teardown of Model S and X lines, paving the way for Optimus at Fremont
