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Tesla’s Model 3 electric motor is a clever mystery box, says auto experts

Model 3 drivetrain.

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Sandy Munro, a teardown specialist and auto industry veteran, is releasing the results of a study he conducted with battery expert Mark Ellis comparing the motors inside four electric vehicles, one of which was a Tesla Model 3. Despite analyzing the vehicle for a long time, the auto expert states that there are still mysteries that he is yet to uncover on the electric sedan.

“The Tesla has a lot of stuff hidden. The Tesla is a big mystery. It’s not obvious sometimes what clever things they’ve done, ” he commented about the California-based car maker’s motor in a recent interview summarized by Industry Week. “There’s mysteries every day. We thought we were clever, but we’re not that clever.”

One of the clever features Munro and Ellis discovered in their Model 3 teardown was the disconnect device for the high voltage. “It’s not really a fuse…It’s like a little explosion. If the car rolls over, they have a little disconnect that blows up, [cutting] all the power to everything and that way you don’t have an electric nightmare,” he revealed. Also, the inner magnets of the Model 3 motor were found to be under a lot of stress, which is not something other manufacturers have learned to do in high volume production. “We’ve talked to lots of magnet manufacturers, but this might be another one of these made-in-Tesla kind of deals. They make a lot of stuff in-house,” Munro guessed.

Sandy Munro holds up the Automatic Drive Module of the Tesla Model 3. [Credit: Autoline Network/YouTube]

Another innovation that impressed the teardown team was how advanced the inverter/convertor device was that provides power to the motor, particularly in the use of silicon carbide on the devices’ integrated circuits. “It creates a lot less heat and is a lot faster than the Chevy and BMW,” Ellis added to the discussion. “Silicon carbide is the latest and greatest and Tesla so far is the only vehicle out there with it.” Munro and Ellis further noted the high level of tech Tesla’s motor contained, all while being considerably smaller than the competition.

The study will be released in a few weeks and also includes detailed information about the motors inside the Chevy Bolt, BMW i3, and Jaguar I-Pace. Munro had very positive things to say about Tesla’s technology, but the electric vehicles produced by industry giants did not receive quite the same accolades. “It looks like the other guys just went around and glued together whatever they could find off the shelf,” Munro jabbed at Tesla’s competition.

The BMW i3 was hit particularly hard and cited as the heaviest, most expensive, and very inefficient overall. “It’s not designed for… I don’t know what it’s designed for, really,” Munro swiped in the interview. “While everything on Tesla is…very, very efficient engineering.” Munro still isn’t sold on the Model 3 body, though, and takes issue with the complexity of the process it takes to manufacture it thanks to the number of parts, materials, and fastenings involved.

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Munro has a history of strong opinions on Tesla’s car intended for the mass market. After completing an initial teardown of a 2017 version of the vehicle, he infamously commented that the car’s panel gaps could be seen “from Mars” among other very critical remarks about the way the car was manufactured. Tesla eventually issued a statement in response to the criticisms, indicating that significant improvements had been made to its Model 3 manufacturing process which would render moot many of the issues identified.

Once the Model 3 teardown was complete, Munro later admitted to eating “a lot of crow” in response to the technology installed and implemented throughout the car. He praised the Model 3 battery pack and the way it handles on the road, in particular, and also estimated Tesla was turning a 30% profit on the vehicle. Munro ultimately concluded that everything from the car’s suspension and down was perfect, but everything about its bodywork was questionable.

While the study Sandy Munro and Mark Ellis have conducted has not yet been released, from the sounds of it, crow seems to have still been on the menu for Tesla’s inner workings while old criticisms still stand about its outer packaging.

Accidental computer geek, fascinated by most history and the multiplanetary future on its way. Quite keen on the democratization of space. | It's pronounced day-sha, but I answer to almost any variation thereof.

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Elon Musk

Elon Musk is setting high expectations for Tesla AI5 and AI6 chips

Musk confirmed this week that Tesla had just completed a design review for AI5.

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Image used with permission for Teslarati. (Credit: Tom Cross)

Elon Musk is setting high expectations for Tesla’s in-house silicon program. As per Musk in a set of recent posts on X, Tesla’s AI5 and AI6 will be game-changing. 

Tesla’s AI5 and AI6 are incredibly important for Tesla’s future, which will likely be built on the back of very high-volume products like Optimus and the Cybercab.

Musk sets high expectations

Musk confirmed this week that Tesla had just completed a design review for AI5, which will initially be manufactured by TSMC in Taiwan before production ramps in Arizona. As per Musk, consolidating Tesla’s chip design efforts into one architecture has allowed the company to focus its silicon talent on delivering a single high-performance platform. 

“Just had a great design review today with the Tesla AI5 chip design team! This is going to be an epic chip. And AI6 to follow has a shot at being the best (by) AI chip by far. Switching from doing 2 chip architectures to 1 means all our silicon talent is focused on making 1 incredible chip. No-brainer in retrospect,” Musk wrote in his post.

In a follow-up post, the CEO also stated that the company’s upcoming AI5 chip “will probably be the best inference chip of any kind” for models below ~250 billion parameters, with the “lowest cost silicon and best performance per watt.” Musk added that AI6, which follows AI5, “has a shot at being the best AI chip by far.”

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AI6 as Dojo’s successor

While AI5 is nearing production, Musk has also pointed to AI6 as Tesla’s next major target. The chip will be manufactured at Samsung’s upcoming Texas facility, part of a multibillion-dollar deal to support Tesla’s next-generation products such as the Cybercab and the Optimus humanoid robot. Musk also noted that AI6 could effectively replace Project Dojo as Tesla’s training platform, given its potential for both inference and training workloads.

Industry veterans have echoed this view, with former Apple and Rivian engineer Phil Beisel suggesting that “AI6 is now Dojo.” Musk appeared to agree, responding with a “bullseye” emoji. Musk has also noted on X that he would personally be walking the line in Samsung’s upcoming AI6 factory in Texas, to make sure that the facility’s output is accelerated according to Tesla’s requirements. 

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Elon Musk: Neuralink could restore partial vision to the blind next year

The executive posted the update on social media platform X.

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Credit: Steve Jurvetson/Twitter

Elon Musk has suggested that Neuralink could attempt to restore limited sight to visually impaired patients as early as 2026. 

The executive posted the update on social media platform X amid news of Neuralink’s first successful Telepathy implants outside the United States. 

Blindsight trials

In a response to a post from Neuralink’s official X account about its first Canadian patients, Musk wrote that the company is “Aiming to restore (limited) sight to the completely blind next year.” The update was well-received on social media, as the device would most likely provide notable quality of life improvements to patients. Neuralink’s current implant, Telepathy, is already changing lives today, and the same will likely be true for Blindsight.

This was not the first time that Musk has provided an update to Neuralink’s Blindsight trials. Earlier this year, Musk told the Qatar Economic Forum that the first human implantation of Blindsight could occur early 2026, potentially in the United Arab Emirates. Neuralink has explored collaboration with the Cleveland Clinic Abu Dhabi to perform the initial surgery. Blindsight has also received a “breakthrough device” designation from the US FDA, hinting at the implant’s development.

Blindsight’s potential

Musk has previously described Blindsight as Neuralink’s brain-computer interface (BCI) designed to restore vision. During Neuralink’s 2022 Show & Tell event, Musk stated that Blindsight would target the brain’s visual cortex, bypassing damaged eyes entirely to generate visual perception. This means that vision could be restored even for people who were born blind. 

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“The first two applications we’re going to aim for in humans are restoring vision, and I think this is notable in that even if someone has never had vision ever, like they were born blind, we believe we can still restore vision. The visual part of the cortex is still there. Even if they’ve never seen before, we’re confident they could see,” Musk said.

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Sweden Mediation Institute throws in the towel on Tesla vs IF Metall union conflict

After nearly two years, the union’s strike has become the country’s longest labor dispute to date.

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Credit: @NicklasNilsso14/X

Sweden’s Mediation Institute has formally ended its efforts to resolve the conflict between Tesla Sweden and trade union IF Metall. After nearly two years, the union’s strike has become the country’s longest labor dispute to date. 

Launched 677 days ago by the IF Metall union, the strike was intended to push Tesla Sweden into signing a collective agreement. Tesla Sweden, however, remained firm, maintaining that its working conditions are already better than union standards.

Mediation Institute withdraws

The state-run Mediation Institute, which had been involved early in the strike, confirmed this week that it was officially closing the case. The two parties have had several meetings, but neither side has been able to come to an agreement.

Director General Irene Wennemo described the effort as unprecedented in difficulty in a comment to Ekot. “We have tried in every possible way to get the parties to come closer to each other in a way that allows this conflict to end. But now we have come to the end of the road and have realized that it is just as good to end the case,” she told the Swedish outlet.

Union signals flexibility

The mediators noted in their final report that Tesla Sweden had limited authority in the talks, with key decisions appearing to rest with executives in the United States. The situation, they stated, created barriers to compromise that made the conflict “unlike anything else.” Tesla has maintained throughout that its Swedish workers already receive strong benefits and protections without the need for a formal collective agreement, as noted in a CarUp report.

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IF Metall, for its part, has begun hinting that it was open to alternatives. This was highlighted by Union Chair Marie Nilsson, who noted that while the preferred outcome of the country’s longest strike in history is a signed agreement, “other alternative solutions” are now on the table. “You can do it in different ways. The easiest thing would be to sign a collective agreement. But when that is not possible, we have to find other alternative solutions as well, so we are open to discussion,” the union official stated.

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