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Auto experts share insights on Tesla Model Y wiring and how Maxwell’s supercapacitors can improve batteries

Tesla's next-gen Roadster and the Model Y at the 2019 Annual Shareholder Meeting. (Photo: Vincent Yu/Twitter)

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There is no doubt that the adoption of electric vehicles is already underway. Key auto markets such as China and Europe have adopted aggressive goals for a zero-emissions future, and electric cars continue to improve with every iteration. Yet, inasmuch as the EV segment has grown since the early days of the original Tesla Roadster, the evolution of electric cars is only just beginning. Over the years, there will be more breakthroughs for all-electric propulsion, and automakers that refuse to acknowledge this will probably find themselves in dire straits. 

These, as well as the upcoming EV technologies that are set to make a debut within the next few years, was the focus of an extensive interview with Sandy Munro and Mark Ellis from Munro and Associates. Conducted by Tesla owner-enthusiast Sean Mitchell of All Things EV, the interview touched on several topics, including the breakthroughs that will likely be seen in the Model Y crossover, the potential of Maxwell’s supercapacitors for electric vehicles, and what traditional automakers can do to be more competitive in the emerging EV market. 

Munro, who has extensive experience with the early-build Model 3 and several other vehicles like the BMW i3 and the Jaguar I-PACE, noted that the EV he is most excited about is the Model Y. Munro noted that the Y will be an interesting EV because it would likely show just how much Tesla learned from the Model 3 and its challenging ramp. The teardown expert also stated that he is immensely interested to see just what Tesla did to reduce the wiring of the Model Y to 100 meters from 1.5 km in the Model 3. 

(Credit: carwow/YouTube)

One thing that Munro and Ellis emphasized in the interview was that when it comes to electric cars, battery technology is key. Munro noted that at this point, any company that aims to push EV batteries further would best be advised to take on emerging technologies such as supercapacitors, which could have great implications for electric car technology. This is where Tesla’s acquisition of Maxwell Technologies could come into play. Maxwell, after all, is primarily noted for two of its innovations: dry electrode batteries and supercapacitors. 

Both of these have the potential to improve Tesla’s electric cars significantly. “The dry battery technology is game-changing if it comes to pass and they can put it in a car,” Ellis said while discussing Maxwell’s potential for Tesla. The veteran also provided a scenario where Maxwell’s supercapacitors could play a part in the operation of an EV. 

“One of the issues with the battery is, when I step on the throttle hard, I’m pulling a lot of energy from the battery. And then, when I brake hard, I’m pulling a lot of energy out of the regen, but the batteries can’t take it fast enough. The batteries get really stressed when you try to pull it up too much, so if I had supercapacitors that I could use as a cushion; so when I need energy quickly, (I can) pull it from the supercapacitors and then fill the supercapacitors back up with the battery slowly; and then when I brake, I can capture more of that regen energy and do the supercapacitors faster. I think that just makes logical sense, because now all of a sudden I’ve got a sponge in front of my main energy source and I’m not stressing (the battery) so much,” Ellis said. 

Maxwell Technologies’ building in San Diego, CA. (Photo: Maxwell Technologies)

As for the underwhelming range from competing EVs such as the Audi e-tron and the Jaguar I-PACE, Munro noted that this is simply because of their lack of vertical integration. “(It’s) because they’re buying them from somebody else,” the teardown expert mused. When asked if a good way for traditional automakers to be more competitive in the EV market is to start developing their own battery tech, Ellis warns that adopting such a strategy will likely take a long time. 

“That would be a 10-year project. There are going to be leaders in the battery industry, and a lot of the electric chemistries are under patent. They’re gonna have to be licensed. Whoever comes out on top is probably going to win. But just due to the sheer volume of batteries that are going to be needed in the next five years, you basically have three or four battery (cell) companies that are out there. You got Panasonic, you got Samsung, you got LG, and you’ve CATL from China. Those are the big four. Everybody else is going to find a niche in there,” Elli said. 

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With companies such as Tesla already making headway into the mass market with vehicles like the Model 3 and the upcoming Model Y, it would be easy to perceive the EV segment as having sufficiently matured. It should be noted that this is not the case, as EVs, including Tesla’s electric vehicles like the 370-mile Model S Long Range or the bang-for-the-buck Model 3 Standard Range Plus, still have far more to improve in the years to come. And it is exactly these improvements that make the electric car market just so compelling. 

Watch Sean Mitchell’s extensive sit-down interview with Sandy Munro and Mark Ellis in the video below. 

Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Tesla Cybercab is coming to Asia this month as US service officially begins

Tesla Asia says Cybercab will be on display in Hong Kong, Tokyo, Beijing and Shanghai this month.

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Concept image of Tesla Cybercab in the streets of Hong Kong via Grok
Concept image of Tesla Cybercab in the streets of Hong Kong via Grok

Tesla’s Cybercab is heading to Asia. The official Tesla Asia account posted on X Thursday, inviting Cybercab fans to “Come experience the future of autonomy in Hong Kong, Tokyo, Beijing & Shanghai.” The post went up within hours of Tesla’s own Cybercab milestone in Texas, where the company said Thursday it had begun offering rides in across Austin.

Exact dates and venues for the Asia tour haven’t been released yet, though Tesla Hong Kong replied to the announcement with “Cybercab will be on display in Hong Kong soon,” while Tesla Japan’s response pointed fans to a sign up page for updates. Neither post mentions test rides or a service area, and nothing so far suggests Tesla is launching Robotaxi operations in any of the four cities. Based on how Tesla has run past Cybercab tours, in Europe in late 2024 and at US shopping centers that same December, the Asia stops are almost certainly static displays at Tesla stores or public venues as a means to stimulate buzz for its future driverless ride-hailing service in the big cities.

The timing lines up with Tesla’s only prior Cybercab appearance in the region, a booth at the China International Import Expo in Shanghai last November, which Teslarati covered at the time. At that event, Tesla’s regional general manager for Shanghai framed the car as evidence of the company’s broader mission, a message Tesla has since formalized in its Master Plan Part IV, which states that “autonomous vehicles have the capacity to dramatically improve the affordability, availability and safety of transportation while reducing pollution, particularly in our increasingly dense global cities.” The same document is where Tesla lays out its “sustainable abundance” framing for Cybercab and Optimus alike, describing the two as the hardware behind an AI driven push to cut the cost of transportation and labor at scale.

Whether Cybercab actually operates as a robotaxi anywhere in Asia remains an open question, considering China has already pushed an autonomous ride-hailing market that’s run on homegrown players like Baidu’s Apollo Go and Pony AI. For now, the four city tour reads as a marketing push timed to Austin’s momentum.

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OpenAI cites distrust of SpaceX in decision to drop Cursor partnership

OpenAI will cut SpaceX-owned Cursor’s model access in November, citing Musk’s history of broken contracts.

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OpenAI, the company behind ChatGPT, announced late Friday that it is ending its partnership with Cursor, cutting off the coding tool’s access to its models on November 12. The move comes two weeks after SpaceX completed its $60 billion acquisition of Cursor’s parent company, Anysphere, folding the popular AI coding assistant into Elon Musk’s growing SpaceXAI division.

In a post on its website, OpenAI said the decision came down to trust, not technology. “We cannot be confident that SpaceX will use our technology within our terms of service, based on our experience with Elon Musk’s companies violating contracts,” the company wrote. OpenAI pointed to two specific incidents: X, now part of SpaceX, allegedly breaking the terms of an existing OpenAI contract after Musk bought Twitter.

That lawsuit is the backdrop for all of this. Musk cofounded OpenAI in 2015, left the board in 2018, and sued Sam Altman and Greg Brockman in 2024, arguing they abandoned the company’s nonprofit mission for profit. A federal jury sided with OpenAI in May, finding Musk waited too long to sue rather than ruling on the merits of his claims. Musk said at the time he would appeal to the Ninth Circuit, calling the outcome a “calendar technicality” rather than a real judgment.

Elon Musk breaks silence on OpenAI trial decision

SpaceX’s interest in Cursor predates that verdict by weeks. The company first struck a deal with Cursor in April, securing an option to acquire it for $60 billion or pay $10 billion for joint development work instead. As Teslarati reported at the time, the logic was straightforward: Cursor was paying retail prices to Anthropic and OpenAI, two of its most direct competitors, every time a developer used its product, while SpaceX had idle capacity on its Colossus supercomputer, roughly the equivalent of a million Nvidia H100 GPUs, that Cursor could use to train its own models instead. SpaceX exercised the option in June, days after its own IPO, and the deal closed in mid-August.

Once it closed, Musk moved fast. On an all-hands call with more than 1,000 Cursor employees, he reportedly told staff that SpaceXAI’s Grok was playing catchup in the AI race, unlike Tesla and SpaceX in their own markets, and singled out Anthropic as the company to catch. Cursor CEO Michael Truell now reports directly to Musk inside SpaceXAI.

Elon Musk admits he was ‘clearly wrong’ about Anthropic

Losing OpenAI’s models leaves Cursor leaning harder on Anthropic’s Claude, which has its own compute agreement with SpaceX, and on Cursor’s in-house Composer model, the one SpaceX’s compute was supposed to accelerate in the first place. OpenAI framed the November deadline as maximum notice under its contract, and said it wants to “go above and beyond” to help developers through the transition. Whether Anthropic makes the same call is now the open question in AI coding.

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Tesla Robotaxi gets a massive upgrade in Nevada

Nevada regulators just approved a massive expansion of Tesla’s robotaxi fleet across the entire county.

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Concept art of a Tesla Cybercab in Las Vegas Strip as rendered via Grok

Tesla’s robotaxi footprint in Nevada just grew by roughly 500 times in a single regulatory vote.

The Nevada Transportation Authority approved Tesla’s full Autonomous Vehicle Network Company permit on Thursday, clearing the way for the company to deploy up to 5,000 driverless vehicles across Clark County over the next 12 months. The decision came during a four hour general session meeting that Tesla investor Sawyer Merritt watched live and reported on X, noting the vote replaces the interim order that had limited Tesla to just 10 robotaxis on a narrow stretch of the Las Vegas Strip.

That earlier cap, covered here after it surfaced on August 13, came with restrictions that looked stricter than what Tesla runs in Austin: a 45 mph speed ceiling, no airport pickups, and a geofence confined to the Strip corridor. The new approval extends Tesla’s operating authority to all of Clark County, with room to request an even wider geofence across the state.

Tesla representatives at the meeting said they have no intention of putting 5,000 cars on the road right away. Commercial rides are expected to start within 30 days, pending vehicle inspections, insurance filings, and fare approval, the standard steps every robotaxi operator in Nevada has had to clear.

Tesla’s own Robotaxi account replied to the news with a short line, The golden future is upon us.

The timing lines up with Tesla’s broader robotaxi push this month. The company is preparing to open Cybercab rides to the public in Austin as soon as this month, and it opened a sweepstakes for riders to win a seat at the launch event. Tesla filed its original application for a 5,000 vehicle Nevada fleet back in June, a request regulators trimmed to 10 vehicles when they issued the interim order in July. Thursday’s vote effectively grants the number Tesla asked for from the start.

Zoox, the Amazon owned robotaxi operator, has run in Nevada since 2025 and was capped at 100 vehicles before Thursday’s decision. Tesla’s new ceiling puts it well ahead of that comparison on paper, though the company has said its actual fleet size will depend on how quickly FSD v15 rolls out, the software update executives have called the gateway to scaling unsupervised robotaxi operations nationwide.

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