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SpaceX Starship test tank set for destructive finale after ‘cryo proof’
SpaceX’s fourth Starship test tank is set for a destructive finale after completing a “cryo proof” pressure test on Thursday.
SpaceX’s newest Starship test tank – SN7.1 – is the second in a series of two planned prototypes, both designed to test the viability of using a new steel alloy to build future Starships and Super Heavy boosters. CEO Elon Musk says that SpaceX is technically customizing its own steel alloy for Starship production but Musk’s comments and the results from SN7 testing in June 2020 point towards an offshoot of 304L with minor metallurgical tweaks.
Prior to SN7’s test campaign, Musk revealed that the main goal of the new alloy was to reduce the brittleness of Starship tanks and any adjacent steel components under cryogenic conditions (i.e. extreme cold). Ultimately, SN7 appeared to confirm that the new alloy’s behavior was far more forgiving under cryogenic loads, reaching what were believed to be record pressures before the tank finally burst on June 24th.
Following in SN7’s footsteps, SN7.1 is much closer to an actual Starship prototype.
“SN7.1 is significantly more complex than its sibling and will test a ~304L Raptor mount (thrust puck) and skirt section. The forces and general conditions those new parts will be subjected to are substantially different than most of what SN7 was subjected to, meaning that there is a chance that 304L steel is actually worse in some scenarios.
With any luck, though, SN7.1’s test campaign – scheduled to begin as early as 9pm CDT (UTC-5), September 10th – will be a flawless success, proving that SpaceX’s new steel alloy is superior to 301 for all Starship-related applications. If that’s the case, Starship SN8 – the first full new-alloy prototype – will likely be fully outfitted with a nosecone and header tanks before beginning acceptance testing later this month.”
Teslarati.com — September 10th, 2020
For SN7.1, increased ductility could theoretically be a mixed bag. Assuming SpaceX has also built the thrust puck out of 304L-adjacent steel, it may end up being too squishy under the extreme forces it will be subjected to. At full throttle, the thrust of three Raptor engines will compress the thrust puck – a cone with dimensions roughly the same as a large circular table – with the equivalent force of a ~600 metric ton (1.3 million lb) weight.
On September 10th, SpaceX put SN7.1 through its paces, performing a cryogenic proof test with liquid nitrogen (LN2) while the tank was still installed on the simple steel frame used to support it during production and transport. That simple decision offers a brief glimpse at the extensive planning that allows SpaceX to optimize for speed and efficiency while still conducting successful tests. While SpaceX could have technically installed SN7.1 directly onto a brand new launch mount custom-built for the exact kind of testing expected, the company instead left the tank on its build stand – much cheaper and far easier to replace than the former.
Technically, moving directly to the launch mount would have slightly simplified the test process, but a tank rupture during a routine cryogenic proof test could have extensively damaged or destroyed the mount, requiring weeks of work to build a full replacement. After SN7.1 successfully completed a cryogenic pressure test on September 10th, SpaceX simply lifted it off its work stand and installed it on a custom-built launch mount.
As early as 9pm CDT (UTC-5) on September 14th, SpaceX will once again load SN7.1 with liquid nitrogen. This time around, the tank – after reaching flight pressures of 7.5 to 8+ bar (110-120+ psi) – will be subjected to the simulated thrust of three Raptor engines by a series of hydraulic rams. Based on a public schedule of road closures, at least two tests are planned. The first will likely put SN7.1 through a range of Raptor thrust scenarios and profiles under the same tank pressures needed for orbital Starship flights. If that test is successful, SpaceX may move SN7.1 back to its work stand before intentionally pressurizing the tank until it bursts sometime around September 17th.
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Tesla reveals some crazy Supercharging (and Diner) stats from Q3
In an update posted by Tesla’s Charging account on X, it revealed several interesting tidbits about Supercharger growth.

Tesla has revealed some pretty crazy Supercharging statistics from the third quarter, and there was also a very interesting tidbit regarding the Diner it opened in Los Angeles, as well.
In an update posted by Tesla’s Charging account on X, it revealed several interesting tidbits about Supercharger growth, as well as usage and environmental offset, all occurring in the third quarter:
- 4,000 new Supercharger stalls opened, up 18% year-over-year
- 1.8 TWh of energy delivered to vehicles, up 29% year-over-year
- 842 million liters of gasoline saved, equivalent to 2 billion kilograms of CO2 offset
- 54 million quarterly charging sessions, up 31% year-over-year
The most useful and impressive statistics here are the 4,000 new Supercharger stalls opened in the third quarter, and the environmental impact of gasoline saved. More chargers are crucial to keep up with the increase of EVs on the road, even non-Teslas, as many OEMs have access to the company’s network.
Additionally, the environmental impact of using fewer gallons of gasoline for passenger transportation reduces our reliance on fossil fuels. This is still something that Tesla strives for to this day, as Elon Musk detailed in the Master Plan.
On a lighter note, Tesla also detailed the number of Tesla Burgers it sold at its Supercharger Diner in Los Angeles in Q3. It’s a pretty impressive number:
- 50,000 Tesla Burgers sold, up 100% tastiness
Tesla’s Supercharger Diner first opened in late July, so it has been in operation for a little over two months so far.
Tesla Supercharger Diner officially opens: menu, prices, features, and more
In the roughly 70 days the Diner has been in operation, Tesla has managed to sell about 715 burgers each day. This is incredibly impressive considering the company’s focus on localized, sustainably sourced ingredients and how it stacks up against a fast food franchise like McDonald’s.
The average McDonald’s franchise sells approximately 14,000 burgers per month, Grok says. Tesla would have outpaced that by a considerable margin if its statistics are accurate. It’s pretty impressive.
🚨 4,000 new Supercharger Stalls opened in Q3, with 54 million charging sessions occuring, up 31% year-over-year
Oh, and the Tesla Diner sold 50,000 hamburgers https://t.co/0eRLgDKkXV pic.twitter.com/1PfmEZ27Uy
— TESLARATI (@Teslarati) October 1, 2025
Tesla’s Supercharger presence is felt in many countries across the world, with over 70,000 stalls available. While many EV owners charge at home, the expansion of the Supercharger Network is a necessary thing to have for commuters, road trips, and longer travel.
Tesla has done a great job of being inclusive to other EV makers as well.
Elon Musk
Will Tesla thrive without the EV tax credit? Five reasons why they might
Here are five reasons Tesla might be in better shape without the tax credit being available.

The $7,500 EV tax credit has officially expired, as it came to its closure at midnight on September 30. Many are wondering what will happen to the EV makers in the United States that had a huge competitive advantage over their competitors, a $7,500 discount that could be applied at the point of sale.
Tesla stands to thrive from the lack of tax credit, and although it is hard to believe, brighter days could be ahead for the company, starting with Q4, which began today.
Here are five reasons Tesla might be in better shape without the tax credit being available:
No Tax Credit Means Price Cuts
Tesla has to adjust its pricing strategy now that the $7,500 tax credit is gone, and when it lost the previous tax credit after reaching its cap in 2019, it used a more affordable model to surge sales. At the time, that more affordable model was the Model 3.
Tesla boosted deliveries by over 50 percent that year without any tax credit by simply offering a cheaper model. The credit, in a way, distorts the market, and companies, while attempting to innovate, are able to offer the discount with the help of the government.
Tesla price cuts push EV market toward affordability with broader influence
Companies will now have to weigh what they can discount their vehicles by to keep profits reasonable, but also stoke demand.
Ultimately, Tesla has the ability to use manufacturing and technological efficiencies to increase affordability. It has more control to fluctuate pricing, and price cuts could be on the way.
The Playing Field Becomes Fairer
Companies like Ford and General Motors have also reaped the benefits of the tax credit, but their situation is much different than Tesla’s.
Ford and GM are not profitable on their EV projects, so the EV tax credit has been relied upon to mask high production costs and dealer markups, which have widely impacted their demand. Ford is among the more popular brands that have dipped their toes into the EV market, but they have been forced to adjust their strategy on several occasions due to a lack of profits.
Tesla’s vehicles have been profitable for some time, and the company has been able to make money from its offerings faster. Cybertruck was profitable after just one year of production.
Tesla Cybertruck achieves positive gross margin for first time
Removing subsidies will expose the financial weaknesses of those domestic competitors, and we will likely see those companies scale back their EV efforts in the coming months and years. This will help Tesla more than having access to the tax credit would, which is something CEO Elon Musk has said for years:
First of all, Tesla hasn’t had that consumer tax credit for years & we didn’t ask for this one – GM & Ford did
— Elon Musk (@elonmusk) October 6, 2022
In my view, we should end all government subsidies, including those for EVs, oil and gas
— Elon Musk (@elonmusk) November 14, 2024
Tesla’s Maturity Shows and Investor Confidence Will Boost
Tesla was once dismissed as a subsidy-dependent startup, but that narrative truly died years ago, as it continued to perform well against competitors even after losing the tax credit.
Musk has said himself that the cancellation of these subsidies “will only help Tesla,” as it will highlight the company’s ability to be self-sufficient.
Elon Musk reiterates call for all subsidies on all industries to be removed
Using things like manufacturing efficiencies and vertical integration, Tesla has been less dependent than others on help to build its cars. If anything, investors will likely see the next few months as a make-or-break period for companies building EVs.
Subsidies Sometimes Can Inhibit True Innovation
Some companies can tend to become complacent when government subsidies are offered on their products. Instead of making things better and trying to find new ways to make cars more affordable, some can lean on the help they’re getting.
After subsidies ended for Tesla in 2019, the company achieved two major breakthroughs: the Cybertruck and its energy storage projects scaled to gigawatt-hours. The argument is not that Tesla becomes complacent with the tax credits, but the company is going to feel more pressure to fight for innovation now that its back is up against the wall.
It already offers a better product from a tech standpoint, so affordability could truly be the next major change we see.
Affordable Models Will Be Even More Sought After
Tesla will launch its affordable models this quarter, and with no more tax credit to lean on, these new cars will be what many consumers go for.
If Tesla can launch a model that is close to $30,000 without a tax credit, the company stands to regain a significant portion of its market share from competitors that have eroded it over the past few years. This will undercut the vast majority of electric cars that are currently offered.
- 2025 Nissan Leaf S Trim – $28,140
- 2025 Fiat 500e Base Trim – $32,500
- 2025 Chevrolet Equinox EV – $33,600
Those are the three most affordable EVs available in the U.S. right now, and those prices are without the EV tax credit. If Tesla can get close to $30,000, it will truly make a mark and there might not be all that much of a change in its yearly delivery figures.
News
Tesla makes first move to counter loss of $7500 EV tax credit
Essentially, Tesla is reducing the price of a vehicle for those who choose to lease the vehicle by $6,500.

Tesla has made its first move to counter the loss of the $7,500 electric vehicle tax credit by offering a $6,500 lease credit, which it is offering internally.
Essentially, Tesla is reducing the price of a vehicle for those who choose to lease the vehicle by $6,500, which is a bit of a double-edged sword. However, it appears the company had this strategy ready to fire with the expiration of the EV tax credit, which occurred last night.
Tesla makes a big change to reflect new IRS EV tax credit rules
Tesla is offering the lease credit automatically, it says on its website, as the monthly payment amount already reflects the $6,500 discount. The company said in its terms:
“Monthly lease payment already includes the $6,500 Tesla lease credit, which is subject to change or end at any time. Order does not guarantee eligibility.”
The lease credit offer mostly offsets the loss of the tax credit, although, from a financial standpoint, it seems Tesla will take a bit of a hit in its profit margins. It will be interesting to see how long the company maintains the lease incentive because of its pressure on profits.
Lease pricing for the Model 3 and Model Y was also adjusted by Tesla after the expiration of the tax credit at midnight. The company increased these prices by up to 11 percent, as the Model Y’s payment range increased from $479 to $529 to between $529 and $599.
NEWS: Tesla has increased lease pricing for the Model Y and Model 3 in the U.S. by up to 11%, but Tesla has also introduced a $6,500 lease credit to help offset the loss of the EV credit.
“Monthly lease payment already includes the $6,500 Tesla lease credit, which is subject to… pic.twitter.com/NyHV1VBH3x
— Sawyer Merritt (@SawyerMerritt) October 1, 2025
Model 3 prices came up from between $349 and $699 to $429 and $759.
These are with default options, including $3,000 down, a 36-month lease period, and 10,000 miles per year.
How Tesla’s sales will respond to the removal of the tax credit is one of the more discussed topics in the community over the past few months.
EV tax credit rule adjustment provides short-term win, but long-term warning
It was relatively evident that the Trump Administration planned to get rid of any subsidies for electric vehicles, something that Tesla CEO Elon Musk supported.
However, the true impact likely will not be seen until Q1 2026, as the credit will still be applied to any order placed before September 30. Leases do not apply to this condition, as deliveries had to be completed by yesterday to apply. Deliveries made after September 30 must be financed or paid for in cash.
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