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SpaceX CEO Elon Musk kills mini BFR spaceship 12 days after announcing it
Less than two weeks after SpaceX CEO Elon Musk announced that Falcon 9’s “second stage [would] be upgraded…like a mini-BFR Ship” to prove lightweight heatshield and hypersonic control surface technologies, Musk took to Twitter to assert that the mini BFR spaceship project was dead, despite having stated that SpaceX was working to launch that test article into orbit as early as June 2019 just 12 days prior.
From a public perspective, the status of SpaceX’s next-gen rocket program (known as BFR) is effectively up in the air after several cryptic and seemingly contradictory statements from the company’s CEO and chief engineer.
No, we’re just going to accelerate BFR
— Elon Musk (@elonmusk) November 20, 2018
On Nov. 17, Musk tweeted that BFR – last updated in September 2018 alongside a statement that “this is [likely] the the final iteration [of BFR] in terms of broad architectural decisions” – had already been redesigned, going so far as to describe it as a “radical change”. What that radical design change might be is almost entirely unclear, although Musk has now twice stated that the purpose of these changes (and the whiplash-inducing cancellation of the mini-spaceship) is to “accelerate BFR”.
Radical change
— Elon Musk (@elonmusk) November 17, 2018
As of now, SpaceX appears to have just completed a massive 9-meter diameter composite tank dome in the company’s temporary Port of Los Angeles tent, where a small but growing team of engineers and technicians are working to realize some version of the company’s next-generation rocket. That group has been working in near-silence for the better part of a year and has accepted delivery of and set up a wide range of custom-built tooling for carbon composite fabrication, and has even managed to get that tooling producing massive composite parts that are expected to eventually make up the structure of a spaceship prototype.
That prototype would eventually be shipped to South Texas, where SpaceX is constructing an entirely new facility from scratch to test the design, technology, and operation of the first full-scale BFR spaceship (BFS). As of a few months ago, the plan was to begin those hop tests before the end of 2019, but it’s no longer clear if SpaceX still intends to build a prototype spaceship to conduct hops and high-speed, high-altitude test flights.
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- BFR’s spaceship design, as of 2018. (SpaceX)
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- A BFS attempts a Mars landing in this official updated render. (SpaceX)
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- SpaceX’s huge Port of LA-based BFR tent, September 18th. (Pauline Acalin)
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- SpaceX’s first BFR spaceship prototype is coming together piece by piece. (SpaceX/Pauline Acalin)
Responsibly building giant rockets
One can only hope that the SpaceX employees tasked with bringing an already monumentally difficult idea from concept to reality are learning about these earth-shaking, “radical” decisions and changes through a medium other than Twitter. If those senior engineers and technicians are not extensively forewarned and given some say in these major system-wide decisions, it’s hard to exaggerate the amount of time, effort, and resources potentially being wasted (or at least misdirected).
There is undoubtedly something to be said for getting complex and difficult things as right as possible on the first serious try, especially when the sheer expense of the task at hand might mean that there is only one real chance to try. Still, it’s not particularly encouraging when a three-year-old hardware development program marked by several major design iterations is still experiencing anything close to “radical change”. After multiple years of concerted effort, BFR still appears to be in some sort of design limbo, where a constant and haphazard stream of on-paper changes act as a near-insurmountable hurdle standing in the way of a completed “good enough” blueprint that can begin to be made real.
Ultimately, even if some of the worst-case scenarios described above turn out to be true, there are still many, many reasons to remain positive about SpaceX’s BFR program on the whole. The next-gen rocket’s propulsion system of choice – an advanced engine known as Raptor – is quite mature at this point and may already be nearing initial flight readiness. Regardless of any future changes to BFR’s overall spaceship and booster structures, SpaceX technicians, engineers, and material scientists have likely gained invaluable experience in pursuit of an unprecedented 9-meter diameter rocket built almost entirely out of carbon fiber composites.
Further, it appears that quite a bit of progress has been made over the course of R&D programs related to methane-oxygen RCS thrusters (Falcon uses nitrogen), autogenous tank pressurization with gaseous methane and oxygen (Falcon uses helium), and perhaps even in-situ resource utilization (ISRU) that will be an absolute necessity to generate water, oxygen, and methane that will keep prospective Mars colonists alive and refuel spaceships for the voyage back to Earth.
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- SpaceX’s horizontal Raptor test stand is pictured here in April 2018. A prototype Raptor can be seen in the center bay. (Aero Photo/Teslarati)
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- A new rocket test-stand takes shape at SpaceX’s McGregor, TX facilities. As of just a few months ago, this site was effectively barren of activity. (April 17, Aero Photo)
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- SpaceX’s Boca Chica facilities now sport two massive propellant tanks, meant to support BFR spaceship hop tests. (NSF /u/ bocachicagal, SpaceX)
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Tesla has updated its Robotaxi app so riders can pick which vehicle they want before they book. The latest in-app screens now show two options side by side: the two-seat Cybercab and the four-seat Model Y.
A screenshot circulating Thursday shows the change in practice. In Austin, a rider could choose a gold Cybercab for two people or a Model Y for four. Tesla’s updated description calls Cybercab “our first purpose-built autonomous vehicle,” designed for safety, accessibility, and comfort, and says the lineup is available only through the Robotaxi app.
Tesla has updated their Robotaxi page in the App Store. You’ll be able to select if you want a Cybercab or Model Y Robotaxi.
“Our Robotaxi vehicle lineup now includes Cybercab, our first purpose-built autonomous vehicle. Designed for safety, accessibility and comfort, Cybercab… pic.twitter.com/Jff4klilDr
— Sawyer Merritt (@SawyerMerritt) September 3, 2026
The distinction is more than cosmetic, and it’s important to note that Robotaxi refers to the platform, while Cybercab refers to a vehicle.
Model Y Robotaxis have carried the service since it opened in Austin in mid-2025 and later expanded to Dallas, Houston, and parts of Florida. Those vehicles are converted production SUVs that still have steering wheels and pedals.
Cybercab is different. It has no driver controls, butterfly doors, a low seat height meant to work with wheelchairs, extra trunk space for assistive devices, and braille on the handles. Tesla has registered dozens of the two-seaters with Texas regulators in the days leading up to its September 3 Austin event.
Giving riders a choice lets Tesla match the vehicle to the trip. Most rides involve one or two people, which is where Cybercab is meant to be cheaper and more efficient to operate. Groups of three or four, or anyone who needs more space, can still request a Model Y.
The same app handles booking, payment, cabin settings, and, on Cybercab, features such as phone-based door opening and in-cabin voice controls.
The update does not mean every city suddenly has both cars available. Cybercab support is listed for Austin first, and the purpose-built fleet is still small compared with the existing Model Y roster. Even so, the app change marks a shift from a single-vehicle pilot to a mixed fleet.
Riders can now choose between the compact, purpose-built robotaxi and the familiar SUV that launched the service.
Tesla Cybercab sightings are broadening far and wide, well outside of downtown Austin, Texas, with autonomy in focus as the company plans to launch the all-electric, two-seater this evening in the Lone Star State.
Tesla is set to launch Cybercab to a small group of people this evening in a dedicated event in Austin, Texas. Public details on the event are relatively slim.
However, Tesla’s focus on Cybercab falls well outside of the downtown Austin area and is expanding well across the United States as things continue to move quickly with the company’s autonomous efforts in 2026. Today, various images of Cybercab fleets in interesting locations have started to circulate.
The most notable is a fleet of at least 20 Cybercabs at Miami International Airport in Florida. Spotted last night, the fleet is expansive and is indicative of a looming release of Cybercabs once regulatory boxes are checked off.
Tesla has already been operating the Robotaxi platform in Miami for several months, but this Cybercab fleet at the airport could be joining the ride-hailing platform as approvals arrive:
20+ Cybercabs spotted near Miami international airport. pic.twitter.com/ORLsw8yFhf
— Sawyer Merritt (@SawyerMerritt) September 3, 2026
Another fleet of Cybercabs was spotted at the Devon, PA showroom just outside of Philadelphia. We have seen several Cybercab units testing around the Philadelphia Metro Area, which is interesting considering Tesla does not have any active Robotaxi geofence in Pennsylvania.
Cybercab at the Devon location in PA has multiplied over the weekend. Seeing a few more test vehicles in the lot 👀 pic.twitter.com/DhJT4P1EkU
— Billy (@billykyle) August 22, 2026
Philadelphia would be an ideal location to test ride-hailing due to its dense tourist population, large, sprawling city layout, and to compete with other ride-hailing companies that operate in the city.
Expansive fleets of Cybercabs will be popping up in and around major cities throughout the rest of the year, if we were betting on it. Tesla has made it obvious that the Cybercab rollout will be aggressive and fast-paced, but within reason. Tesla is still prioritizing safety, so these testing phases will likely go on for some period of time before more members of the public are able to snag a Cybercab for a personal chariot.
The Tesla Model Y L is arguably the most hyped trim of the all-electric crossover, other than the Performance configuration that comes with white-knuckle speed and sports car-level handling.
However, it is not all perfect. Tesla owners in China who took delivery of the Model Y L, denoted with an L to highlight its longer wheelbase, are experiencing what they are referring to as “collapsing” of the rear wheels, as suspension issues appear to be an issue with some of the builds.
🚨 Model Y L owners in China report rear suspension sag
• Six-seat long-wheelbase Y. Shanghai. On sale since August 2025
• Owners say the rear tire-to-arch gap shrinks after mileage or a full load. Some cases after about 9,000 km loaded. Others near 30,000 km
• Tesla service… pic.twitter.com/Lr6i5Tbi07— Joe Hansen (@joehansen) September 1, 2026
The gap between the wheel arch and tire has narrowed to the point that “not even a single finger” could fit, according to a report from Car News China. The failures are not tied to a specific mileage, as one owner said that after just 9,000 kilometers (5,600 miles), they noticed the suspension issue when their car was fully loaded.
Another one had the issue at 30,000 kilometers (18,640 miles) and noticed that the wheel gap shrank to two fingers, so not as drastic as the person who reported a similar issue at 9,000 km.
Tesla Model Y L is gaining momentum in China’s premium segment
Along with the visual recognition of the issue, others are saying the sagging is causing abnormal wear on the inside of the tires. Extra weight and instant torque already provide additional stress on the tires in electric vehicles during normal operation, so it is no surprise that this is another complaint.
There has been no recall issued by Tesla, and the company has not yet publicly acknowledged the issue.
Some are suggesting that owners use a “finger test” to self-diagnose whether there is an issue with the suspension. There should be four fingers between the tire and the wheel well; anything less than that starts to get dicey.
Tesla Robotaxi riders will face the best dilemma when booking a ride
Tesla Cybercab sightings broaden well outside of Austin with autonomy in focus
