Rumors have recently emerged from China suggesting that Tesla is looking to tap Switzerland’s Bühler as another Giga Press supplier. Similar to IDRA, Bühler is also a manufacturer of large-scale die-casting machines.
The rumor was initially shared by Tesla and EV industry watcher Chris Zheng on Twitter. Citing information from employees of a Chinese car startup, Zheng noted that China would have a number of vehicles in mass production next year that will be using integrated die castings like the Tesla Model Y. These companies reportedly benchmark and analyze Tesla and its vehicles.
“Tesla’s Giga press supplier will be replaced from Italy’s IDRA to Switzerland’s Bühler next year. The latter is also one of the world’s 6 largest die-casting giants. It rejected Tesla’s demand for a 6000t-level Giga press in 2019, but now their products offer better performance,” Zheng wrote on Twitter.
This is undoubtedly a rumor for now, though it is one that is extremely interesting. Teslarati has reached out to Tesla for a comment on the rumor and will update this story if or when we receive a response.
While the idea of IDRA being replaced by Bühler may sound too extreme, it is possible that Tesla would tap the resources of another die casting machine maker for its upcoming vehicle production ramp. Bühler is an interesting choice nonetheless, especially since the company was one of the firms that rejected Tesla’s proposal for a 6,000-ton Giga Press a few years ago.
Elon Musk himself mentioned this during the Cyber Rodeo event. According to Musk, Tesla had approach the world’s six top die-casting machine makers, and all but IDRA considered the construction of a Giga Press. Tesla has since proven that Giga Presses work, however, so it’s not surprising to see other companies also trying their hand at creating Giga Press-level machines.
“It’s a revolution in car manufacturing to basically make a car out of three major parts — a cast rear, a structural pack, and a cast front. So what you’re looking at are the biggest casting machines ever made. It’s kind of crazy thing to make a car this way. It’s never been done before.
“When we were trying to figure this out, there were six major casting manufacturers in the world. We called six. Five said’ no,’ one said ‘maybe.’ I was like ‘that sounds like a yes.’ So with a lot of effort and great ideas from the team, we’ve made the world’s biggest casting machine work very efficiently to create and radically simplify the manufacturing of the car,” Musk said.
A look at Bühler’s official website shows that the company is also developing giant die-casting machines that offer the highest productivity.
“Automotive manufacturers are currently rethinking production in many ways. Our Carat series enables them to put their ideas of even larger parts into reality, and we support our customers in developing the processes to do so. We see a huge increase in the demand for ever larger machines. With our Carat 840 and Carat 920 we can offer our customers solutions for large structural parts with complex geometries and new body-in-white parts,” Cornel Mendler, Managing Director of Bühler Die Casting, said.
Bühler’s Carat 840 and Carat 920 machines feature locking forces of up to 92,000 kilonewtons (kN). They are also designed to produce as little scrap as possible. “Bühler’s vision for the future of the die casting industry is: 0% scrap, 40% less cycle time, and 24/7 uptime. Advancing further towards this vision is even more important: The larger the castings, the bigger the lever to minimize production costs by reducing scrap, cycle time and increasing uptime of the die-casting system. The design of the Carat 840 and Carat 920 positively impact the quality of these complex, thin-walled parts which require an extremely powerful and accurate injection unit and a homogenous locking force application,” the company wrote in a press release.
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Elon Musk
Tesla plans to adjust heavily scrutinized car part with simple engineering
“We’ll have a really good solution for that. I’m not worried about it.”

Tesla is going to adjust one heavily scrutinized part of its vehicles after recent government agencies have launched probes into an issue stemming from complaints from owners.
Over the past few days, we have reported on the issues with Tesla’s door handle systems from both the Chinese and American governments.
In China, it dealt with the Model S, while the United States’ National Highway Traffic Safety Administration (NHTSA) reported nine complaints from owners experiencing issues with 2021 Model Ys, as some said they had trouble entering their car after the 12V battery was low on power.
Bloomberg, in an interview with Tesla Chief Designer Franz von Holzhausen, asked whether the company planned to adjust the door handle design to alleviate any concerns that regulatory agencies might have.
Regarding the interior latch concerns in the United States:
- Von Holzhausen said that, while a mechanical door release resolves this problem, Tesla plans to “combine the two” to help reduce stress in what he called “panic situations.”
- He also added that “it’s in the cars now…The idea of combining the electronic and the manual one together in one button, I think, makes a lot of sense.” Franz said the muscle memory of reaching for the same button will be advantageous for children and anyone who is in an emergency.
Regarding the exterior door handle concerns in China:
- Von Holzhausen said Tesla is reviewing the details of the regulation and confirmed, “We’ll have a really good solution for that. I’m not worried about it.”
Franz von Holzhausen (from Tesla’s Robovan) on Tesla’s upcoming redesigned door handles: pic.twitter.com/lnaKve1SlJ
— Sawyer Merritt (@SawyerMerritt) September 17, 2025
The new Model Y already has emergency mechanical door release latches in the back, but combining them in future vehicles seems to be an ideal solution for other vehicles in Tesla’s lineup.
It will likely help Tesla avoid complaints from owners about not having an out in the event of a power outage or accident. It is a small engineering change that could be extremely valuable for future instances.
News
Elon Musk calls out viral claim of 10,000 Tesla Optimus deal: “Fake”
For now at least, Tesla seems determined to focus on the development of Optimus V3.

Elon Musk has provided some clarification to recent reports suggesting that PharmAGRI, a US pharmaceutical and agricultural infrastructure company, is looking to deploy 10,000 Optimus robots for its operations.
Musk posted his clarification on social media platform X.
Alleged Optimus purchase
Recently, reports emerged stating that PharmAGRI Capital Partners will be tapping into Tesla’s humanoid robots for its operations. The firm claimed that it had executed a Letter of Intent with Tesla to deploy up to 10,000 Optimus Gen 3+ humanoid robots across its SuperPharm and CEA facilities. This should allow the company to automate its labor and ensure diversion control.
A comment from Lynn Stockwell, Chairwoman & CEO, suggested that the company really was partnering with Tesla. “With Tesla robotics powering our facilities and DEA-licensed infrastructure in place, we can scale with precision, meet federal sourcing mandates, and deliver therapies that are compliant, secure, and American-made,” she said.
Elon Musk clariies
News of PharmAGRI’s Optimus claims quickly spread on social media, though some Tesla watchers argued that it seemed unlikely that the EV maker will commit two legions of Optimus robots to a rather unknown company this early. Some pointed out that Tesla typically commits to high-profile customers to test its early products, such as PepsiCo with the Tesla Semi.
Photos from PharmAGRI’s website depicting Tesla Optimus bots, as well as the rather basic look of the website itself, also brought more reservations to the company’s claims. Ultimately, Elon Musk weighed in on the matter, responding to a post about PharmAGRI’s Optimus-filled webpage. Musk was quick and direct, simply stating, “Fake.”
Elon Musk’s comments were quite unsurprising considering that Optimus is still very much in active development, and thus, it is quite unlikely that the company is already taking orders or even Letters of Intent from potential customers at this time. For now at least, Tesla seems determined to focus on the development of Optimus V3, which Musk has noted will be “sublime.”
Elon Musk
Elon Musk: Self-sustaining city on Mars is plausible in 25-30 years
Musk noted that true self-sufficiency requires Mars to develop “all the ingredients of civilization.”

Elon Musk has stated that a self-sustaining human settlement on Mars could be established in 25-30 years, provided launch capacity increases dramatically in the coming decades.
Speaking at the All-In Summit, the SpaceX CEO said building a self-sufficient colony depends on exponential growth in “tonnage to Mars” with each launch window, highlighting Starship’s role as the company’s pathway to interplanetary initiatives.
Mars settlement goals
Musk noted that true self-sufficiency requires Mars to develop “all the ingredients of civilization,” from food production to microchip manufacturing. Starship Version 3 is expected to support the first uncrewed Mars test flights, while future iterations could reach 466 feet in height and deliver larger payloads critical for settlement. Ultimately, Musk stated that an aggressive timeline for a city on Mars could be as short as 30 years, as noted in a Space.com report.
“I think it can be done in 30 years, provided there’s an exponential increase in the tonnage to Mars with each successive Mars transfer window, which is every two years. Every two years, the planets align and you can transfer to Mars.
“I think in roughly 15, but maybe as few as 10, but 10-15-ish Mars transfer windows. If you’re seeing exponential increases in the tonnage to Mars with each Mars transfer window, then it should be possible to make Mars self-sustaining in about call it roughly 25 years,” Musk said.
Starship’s role
Starship has flown in a fully stacked configuration ten times, most recently in August when it completed its first payload deployment in orbit. The next flight will close out the Version 2 program before transitioning to Starship Version 3, featuring Raptor 3 engines and a redesigned structure capable of lifting over 100 tons to orbit.
While SpaceX has demonstrated Super Heavy booster reuse, Ship reusability remains in development. Musk noted that the heat shield is still the biggest technical hurdle, as no orbital vehicle has yet achieved rapid, full reuse.
“For full reusability of the Ship, there’s still a lot of work that remains on the heat shield. No one’s ever made a fully reusable orbital heat shield. The shuttle heat shield had to go through nine months of repair after every flight,” he said.
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