SpaceX has confirmed that the two large propellant tanks now present at its Boca Chica, Texas facilities will likely to be the last major ground tanks needed to enable the first test flights of the upper stage of its next-gen BFR rocket, known as the Big Falcon Spaceship (BFS).
Expected to begin as soon as late 2019, SpaceX executives have recently reiterated plans for a campaign of hop tests for the first full-scale spaceship prototype, in which the ship will follow in the footsteps of its Falcon 9-based Grasshopper and F9R predecessors.
https://twitter.com/krgv_mike/status/1055748966619537408
In a comment provided to a number of local outlets, SpaceX Communications Specialist Sean Pitt stated this about the recent arrival of a second large propellant storage tank at the company’s prospective South Texas test and launch facilities.
“The ongoing construction of our launch pad in South Texas is proceeding well. SpaceX has now received the final major ground system tank needed to support initial test flights of the Big Falcon Spaceship.” – Sean Pitt, SpaceX
While there may have been some slight uncertainty before, this official statement confirms beyond the shadow of a doubt that SpaceX is actively and rapidly preparing its South Texas property for a future of BFR-related tests, spaceship hops, and perhaps even launches.
Same dance, different hops
Unlike Falcon 9’s Grasshopper and F9R reusability development programs, SpaceX’s BFS hop test campaign is likely going to be much more aggressive in order to gather real flight-test data on new technologies ranging from unfamiliar aerodynamic control surfaces (wings & fins vs. grid fins), all-composite propellant tanks (Falcon uses aluminum-lithium), a 9m-diameter vehicle versus Falcon’s 3.7m, a massive tiled heat-shield likely to require new forms of thermal protection, and entirely new regimes of flight (falling like a skydiver rather than Falcon 9’s javelin-style attitude) – to name just a handful.
To fully prove out or at least demonstrate those new technologies, BFS hop testing is likely to be better described as “flight testing”, whereby the spaceship launches vertically but focused primarily on regimes where horizontal velocity is far more important than vertical velocity.
“But by ‘hopper test,’ I mean it’ll go up several miles and then come down. The ship will – the ship is capable of a single stage to orbit if you fully load the tanks. So we’ll do flights of increasing complexity. We really want to test the heat shield material. So I think we’ll fly out, turn around, accelerate back real hard and come in hot to test the heat shield because we want to have a highly reusable heat shield that’s capable of absorbing the heat from interplanetary entry velocities, which is really tricky.” – CEO Elon Musk, October 2017
Focusing on the important things (for fully-reusable rockets)
SpaceX does has significant familiarity with the general style of testing expected to be used to prove out its next-gen spaceship, a major department from anything the company has yet built or flown. Updated in September 2018 by CEO Elon Musk, the craft’s most recent design iteration is reportedly quite close to being finalized. That near-final design prominently features a trio of new aft fins (two able to actuate as control surfaces), two forward canards, and an updated layout of seven Raptor engines.
Critically, SpaceX has decided to commonize BFR’s main propulsion, choosing to skip the performance benefits of a vacuum-optimized Raptor variant for the simplicity and expediency of exclusively using sea level Raptors on both the booster and spaceship. This decision is ultimately strategic and well-placed: rather than concerning early-stage development with the inclusion of a second major branch of onboard propulsion, the company’s engineers and technicians can place their focus almost entirely on a one-size-fits-all version of BFR with plenty of room for upgrades down the road.
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- BFS seen standing vertically on the pads of its tripod fins. (SpaceX)
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- A better view. (SpaceX)
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- BFR’s booster and spaceship separate a few minutes after launch. (SpaceX)
With a rocket as large as BFR and a sea level engine already as efficient as Raptor, the performance downgrade wrought by the initial removal of Raptor Vacuum (RVac) is scarcely more than a theoretical diversion. The specific performance numbers remain to be seen but will likely be greater than 100 metric tons (~220,000 lbs) to low Earth orbit (LEO). Past a certain point, however, the actual performance to LEO and beyond is almost irrelevant, at least from a perspective of individual launches. The paradigm SpaceX is clearly already interrogating is one where the cost of individual launches is so low relative to today’s expendable launch pricing ($5,000-20,000/kg to LEO) that it will almost be anachronistic to design or work with a single-launch-limit in mind, a limit that is just shy of a natural law in the spaceflight industries of today.
Because SpaceX has already demonstrated expertise in vertically launching, landing, and generally controlling large rockets, the main challenges faced with BFR are more operational than purely technical. To be clear, the technical challenges are still immense, but successfully solving those challenges by no means guarantees that the aircraft-like operational efficiency needed for BFR to succeed can or will be fully realized.
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- A gif of Raptor throttling over the course of a 90+ second static-fire test in McGregor, Texas. (SpaceX)
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- SpaceX’s subscale Raptor engine has completed more than 1200 seconds of testing in less than two years. (SpaceX)
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- A closeup of BFS’ nose section, featuring impressively varied tile-sizes, joining methods, and extremely precise curves on the interface between canard wings and the hull. (SpaceX)
In 2016, Musk pegged SpaceX’s cost goals for a BFR-style fully-reusable rocket at less than $1M per launch for booster and spaceship maintenance alone, or $3.3M per launch with amortization (paying for the debt/investment incurred to fund BFR’s development) and propellant estimates included. To realize those ambitious costs, SpaceX will effectively have to beat the expendable but similarly-sized Saturn V’s per-launch costs (~$700M) by a factor of 100 to 200 – more than two orders of magnitude – and SpaceX’s own Falcon 9 and Heavy launch costs (~$55M to $130M) by 20-50X.
To even approach those targets, SpaceX will need to learn how to launch Falcon and BFR near-autonomously with near-total and refurbishment-free reusability, while also developing and demonstrating orbital refueling capabilities that do not currently exist and rapidly maturing large-scale composite tankage and structures. None of those things require Raptor Vacuum.
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A close-up image of a Cybercab engineering vehicle in Peabody, Massachusetts, reveals a compact triangular side repeater camera housing equipped with an integrated washer mechanism.
This seemingly small hardware addition could prove to be one of the most critical components for achieving reliable, unsupervised Full Self-Driving (FSD) — not just for the dedicated Robotaxi but potentially for existing AI4-equipped vehicles as well.
The washer system’s importance cannot be overstated in Tesla’s vision-only autonomy approach. Cameras are the sole sensory input for the neural networks powering FSD, constantly interpreting the environment for safe navigation. In real-world conditions, however, lenses quickly accumulate rain, snow, mud, dust, or road spray.
Many of us Tesla owners, especially those who deal with any sort of winter weather at all, know the all-too-common alert that pops up when cameras are obstructed:
Even brief obstructions can drop perception confidence, trigger safety disengagements, or force the vehicle to pull over, although these are relatively rare. Instead, most of the time, the camera will need a wipe from the owner next time they stop the car.
But unlike human drivers who can manually clear their view, a Robotaxi operating 24/7 without a steering wheel or mirrors must maintain pristine vision autonomously. The Cybercab’s side repeater washer delivers targeted cleaning bursts precisely where needed for merging, lane changes, and blind-spot monitoring — functions that demand uninterrupted visibility from the external cameras:
And this is how the side camera and washer look like on a Cybercab. This is from an Engineering vehicle in Peabody MA. pic.twitter.com/Re8VknpmLM
— Tobias Goebel (Unsupervised) (@tpgoebel) June 17, 2026
This hardware directly tackles a known pain point in current FSD deployments. Owners frequently report camera-related alerts during inclement weather, which is understandable, but needs to be solved for a true autonomous experience.
For a production Robotaxi fleet aiming for high utilization and minimal downtime, robust washer systems represent a foundational reliability upgrade; essentially, they’re a must-have. Early sightings suggest the design may extend to rear cameras as well, creating a comprehensive cleaning architecture that keeps the entire vision suite operational in harsh environments.
Without it, even the most advanced neural nets struggle when their “eyes” are compromised.
What Does This Mean for AI4 Cars?
This Cybercab detail raises timely questions for AI4 cars already on the road. While Hardware 4 delivers superior compute and camera resolution compared to earlier versions, production models typically lack dedicated side and rear washers. Tesla has included them on Model Y robotaxis that it is using in the fleet:
Tesla Robotaxi has a highly-requested hardware feature not available on typical Model Ys
As Tesla refines unsupervised FSD for broader release, the gap in environmental resilience becomes evident. Software improvements can help mitigate issues, but they cannot fully replace physical cleaning in heavy rain or muddy conditions. Analysts and owners increasingly speculate that AI4 vehicles may eventually require similar washer retrofits — or a future AI4.5 variant — to match the Cybercab’s all-weather readiness and support the same level of autonomy.
As testing progresses, the Cybercab’s washer mechanism highlights Tesla’s pragmatic focus on real-world robustness. It may well become the hardware piece that determines how quickly and reliably FSD scales from prototypes to everyday vehicles.
Elon Musk
Elon Musk just upped his Tesla stake further fueling SpaceX merger conversation
Elon Musk just collected a $116 billion Tesla payday and the timing is eye-opening
Elon Musk quietly collected one of the largest single-transaction paydays in corporate history on Monday. A Form 4 filed with the SEC on June 17, 2026 disclosed that Musk exercised 303,960,630 Tesla stock options from his 2018 compensation package, with the transaction dated June 16. No shares were sold on the open market.
The numbers are straightforward but striking. Musk exercised the options at a split-adjusted strike price of $23.34, with Tesla closing at $404.66 that day, putting the spread at $381.32 per share and generating roughly $115.9 billion in paper gains in a single transaction. To cover the exercise cost, Tesla withheld 17,531,857 shares through a net share settlement, meaning Musk paid nothing out of pocket.
For perspective, in 2018, Elon Musk’s award was originally approved by Tesla shareholders on March 21, 2018, and structured entirely around performance milestones that many analysts at the time called unreachable. Every tranche eventually vested. The original grant covered 20,264,042 shares at $350.02, which after Tesla’s 5-for-1 split in 2020 and 3-for-1 split in 2022 adjusted to 303,960,630 shares at $23.34. A Delaware court rescinded the award in January 2024, ruling the board was conflicted. As Teslarati reported, Tesla shareholders voted to ratify the package anyway in June 2024 by a wide margin. The Delaware Supreme Court reversed the decision in December 2025, finding full cancellation too extreme, and Tesla’s board signed an Implementation Agreement on April 21, 2026 to formally deliver the shares.
The Tesla and SpaceX merger everyone is talking about is quietly building
The timing and structure of the Form 4 filing carries more weight than a routine stock option exercise typically would. Musk exercised his 2018 Tesla award on June 16, a week into SpaceX completing its IPO and trading publicly, and giving SpaceX a public market valuation and share currency for the first time in the company’s history. A stock-for-stock merger between two companies requires the acquiring entity to have tradeable shares it can offer to the target’s shareholders, and SpaceX now has exactly that. At the same time, Musk just increased his direct Tesla voting power to approximately 20%, giving him greater influence over any shareholder vote that a merger would require. The restricted shares he received cannot be sold until 2033, which removes any near-term incentive to cash out and instead positions this stake as long-term structural collateral in a deal. Additionally, Musk’s two companies are already deeply intertwined through shared semiconductor fabrication at their joint TERAFAB facility in Austin, cross-company supply chain transactions, and Tesla’s $2 billion investment in xAI prior to the SpaceX-xAI merger.
Wedbush analyst Dan Ives has publicly placed the odds of a Tesla and SpaceX combination at 80% to 90% by early 2027. The Implementation Agreement that made Monday’s exercise possible was signed on April 21, 2026, roughly two months before the SpaceX IPO closed. That sequencing, building Musk’s Tesla ownership to its highest point ever immediately before SpaceX gains the public currency needed to acquire it, is either an extraordinary coincidence or a carefully staged foundation for the largest corporate merger in history.
Tesla Full Self-Driving is going to be getting a major parking upgrade. That’s according to CEO Elon Musk, who detailed a crafty new feature that will improve parking preferences, removing a layer of human input.
Musk said that upcoming releases of Full Self-Driving will “remember your parking preferences.” It will go to the location you prefer, based on where you’ve parked in the past, instead of taking the first spot available, which is where the suite is currently.
The CEO went on to explain that destination parking is “by far” the biggest reason for intervention during FSD operation. We’d have to believe this is true; many takeovers in my Model Y, which runs the latest version of FSD as it is in the Early Access Program, are due to parking because it chooses a spot I do not want to be in.
Many times, as soon as I enter a parking lot, I take over and park manually. I prefer to park away from the entrance of wherever I am, away from cars. Too many lessons learned over the years from people with free-swinging doors.
Upcoming releases of FSD will remember your parking preferences, so that the car goes to the right location at your home, office, school drop off, etc.
Destination parking is by far the biggest reason people now intervene with FSD. Critical safety interventions are extremely…
— Elon Musk (@elonmusk) June 17, 2026
We’d imagine these new updates will also solve things like parking orientation. Let’s say when you arrive at work, you always park in the third spot in the third row, and you prefer to back in. It seems as if Musk is implying that your car will now do this, learning from takeovers and aiming to eliminate the need to manually park whenever possible.
This is a major upgrade because parking is a major shortcoming of FSD currently. We’ve requested things like manual input of parking preferences, choosing to park far away, first available, or away from cars, for example.
This is a big reason Parking Preferences with Supervised FSD will be so valuable.
If possible, parking a little further away and being distant from people like this is worth it. https://t.co/1YqQLgnfTz pic.twitter.com/3Ac71KQiQ3
— TESLARATI (@Teslarati) June 7, 2026
However, some have used the option of dropping a pin at the location you’d like to park at your destination. This has worked some of the time, but FSD will still choose to park in whatever it sees first.
Musk did not give a timetable for when the improvements would be released, but it is likely to come soon. Tesla has been releasing a new FSD version every few weeks, so we may not have to wait long to test it.
Tesla Cybercab has one important piece that AI4 cars might need for FSD
Elon Musk just upped his Tesla stake further fueling SpaceX merger conversation
