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Tesla Model 3 single-piece casting will come, but not anytime soon, Elon Musk says

Elon Musk gives a rare look into the Model 3 production line. [Credit: CBS This Morning/YouTube]

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Tesla will “likely” switch the Model 3 sedan to a single-piece casting design in the future, CEO Elon Musk said in an interview with Sandy Munro. However, the design will not be on its way anytime soon, as Musk said the Berlin and Texas Gigafactories need to have production efforts well underway to sustain demand fulfillment.

The Model 3’s current design is not a single piece casting and is comprised of 70 different metal parts welded together to create the vehicle’s underbody. Tesla improved upon this design in its Model Y crossover by using a massive, single-piece casting to eliminate 69 total parts. The single-piece design is effective for manufacturing purposes and increases structural rigidity in the event of an accident.

As the Model Y and Model 3 dominate Tesla’s current sales and delivery figures, Munro mentioned to Musk that he was disappointed that his new Model 3 teardown did not reveal a single piece casting similar to the Model Y design. However, Musk indicated Tesla’s mass-market sedan would eventually use the single-piece casting, it would just take its next two production facilities to be in operation for it to happen.

Musk told Munro:

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“At some point, we probably will switch to a single-piece casting, but I think we need to get the Texas factory and the Berlin factory going. We do have an issue. It is hard to change the wheels on the bus when it is going 80 MPH down the highway. So, Model 3 is…well, was most of our volume. Model Y will exceed Model 3, but we just need an opportunity to redo the factory without blowing the cash flow of the company.”

In its Q1 2020 Update Letter, Tesla showed the two designs. The Model Y casting (right) was two pieces at this point in time. Thanks to the introduction of Tesla’s Giga Press from IDRA, the automaker has eliminated the two-piece design in favor of a massive one-piece casting. The elimination of so many parts was a huge advantage for Munro, who detailed the casting advantages in several teardown episodes last year.

Tesla Model Y owner Tony Pham then showed the one-piece casting design on his vehicle while having a third-party accessory installed into his all-electric crossover. Pham’s Model Y was delivered in late 2020, proving that Tesla has been utilizing the one-piece design for several months.

Tesla’s single-piece design is widely thought by automotive engineers, including Munro, to be the most advantageous way to build a car. In Munro’s opinion, other automakers have ignored a single-piece design’s advantages due to their stubbornness to keep things the same. “Thousands of engineers, big-time executives, walk by [the idea]. They don’t do it,” Munro said.

One of Tesla’s manufacturing process’s main advantages is that it continues to refine its techniques and never admits that its current processes are the best way to handle things. Tesla is always looking to improve the situation of its manufacturing and production lines, always seeking different techniques and new ways to build its vehicles. The issue now is that Tesla’s vehicles are becoming so popular that its limited production lines cannot be halted to update some production techniques, especially to mass-market vehicles that have been produced for several years. Musk’s analogy of the bus going 80 MPH down the highway is extremely accurate, especially as Tesla is coming off of its largest production and delivery year in company history. Halting Model 3 production lines for an update to the vehicle’s casting design would be detrimental at the current time.

While it is likely that Model 3 single-piece castings could happen down the road, it is not something to expect soon. With Musk indicating that Giga Berlin and Giga Texas need to be in operation for this to occur, these facilities will likely need to have Model 3 production numbers high enough to offset the closure of lines at Giga Shanghai and Fremont. With Berlin focusing on Model Y production initially, it is likely that Model 3 lines will not be ramped for at least a year, so the single-piece Model 3 casting may not be seen until at least 2023.

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Elon Musk’s full interview with Sandy Munro is available below.

Joey has been a journalist covering electric mobility at TESLARATI since August 2019. In his spare time, Joey is playing golf, watching MMA, or cheering on any of his favorite sports teams, including the Baltimore Ravens and Orioles, Miami Heat, Washington Capitals, and Penn State Nittany Lions. You can get in touch with joey at joey@teslarati.com. He is also on X @KlenderJoey. If you're looking for great Tesla accessories, check out shop.teslarati.com

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Tesla Semi gets new product launch as mass manufacturing hits Plaid Mode

While the 1.2 MW Megacharger handles quick 30-minute en-route boosts, the Basecharger serves as a reliable overnight solution for longer dwell times at warehouses, distribution centers, fleet yards, and even, potentially, homes.

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Credit: Tesla

The Tesla Semi is getting a new production launch as mass manufacturing on the all-electric truck is gearing up to hit Plaid Mode.

Tesla has introduced a game-changing addition to its commercial charging lineup with the new 125 kW Basecharger for Semi. Launched this week as part of the new “Semi Charging for Business” program, this compact unit is purpose-built for depot and overnight charging of Tesla Semi trucks.

While the 1.2 MW Megacharger handles quick 30-minute en-route boosts, the Basecharger serves as a reliable overnight solution for longer dwell times at warehouses, distribution centers, fleet yards, and even, potentially, homes.

Delivering up to 60 percent of the Semi’s range in roughly four hours, perfect for overnight top-ups during mandated driver rest periods or while trucks are loaded or unloaded. Its fully integrated design eliminates the need for bulky separate AC-to-DC cabinets.

Tesla engineers tucked one of the power modules from a V4 Supercharger Cabinet directly inside the sleek post, resulting in a compact footprint. It also features a six-meter cable for layout flexibility. This is one thing that must have been learned through the V4 Supercharger rollout.

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Installation and operating costs drop dramatically thanks to daisy-chaining. Up to three Basechargers can share a single 125 kVA breaker, slashing electrical infrastructure requirements. The unit outputs 150 amps continuous across an 180–1,000 VDC range, matching the Semi’s high-voltage architecture while supporting the MCS 3.2 standard.

Tesla Semi sends clear message to Diesel rivals with latest move

Priced from $40,000 for a minimum order of two units, the Basecharger is far more affordable than the $188,000 Megacharger setup for two posts. Deliveries begin in early 2027. Buyers also receive Tesla’s full network-level software, remote monitoring, maintenance, and a guaranteed 97 percent or higher uptime—critical for fleet reliability.

This launch arrives as Tesla accelerates high-volume Semi production at its Nevada factory, targeting 50,000 units annually. By pairing affordable depot charging with ultra-fast highway options, Tesla removes one of the biggest obstacles to electrifying Class 8 trucking: infrastructure cost and complexity.

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Fleet operators stand to gain lower electricity rates during off-peak hours, dramatically reduced maintenance compared to diesel, and quieter yards at night. The Basecharger isn’t just another charger—it’s the practical bridge that makes large-scale electric semi adoption economically viable.

With the Basecharger handling “home” duties and Megachargers powering the road, Tesla is delivering a complete ecosystem that could finally tip the scales toward zero-emission freight. For trucking companies ready to go electric, the future just got a whole lot more charger-friendly.

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Tesla revises new Intervention Reporting system with Full Self-Driving

It is the second revision to the program as Tesla is trying to make it easier to decipher driver and owner complaints, but also to make it easier to report issues within the suite for them.

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Credit: Tesla

Tesla has revised its new Intervention Reporting system within the Full Self-Driving suite that now categorizes reasons that drivers take over when the semi-autonomous driving functionality is active.

It is the second revision to the program as Tesla is trying to make it easier to decipher driver and owner complaints, but also to make it easier to report issues within the suite for them.

With the initial rollout of Full Self-Driving v14.3.2, Tesla included a new reporting menu that gave four options for an intervention: Preference, Comfort, Critical, and Other. A slightly revised version of Full Self-Driving with the same ID number then came out a few days later, changing the “Other” option to “Navigation” after numerous complaints from owners.

It appears Tesla has listened to those owners once again and has not only made it smaller and more compact, but also easier to report the issues than previously.

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The new menu is now embedded within the request for a Voice Memo from Tesla, and does not block the entire screen, as the second rollout of the menu was:

There will likely be one additional revision to the Interventions Menu, as we have coined it here at Teslarati.

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Unfortunately, at times, there are no reasons for an intervention at all, but the menu does not give an option to simply disregard the reporting and forces the driver to choose one of the options. We, as well as other notable Tesla influencers, indicated that there is not always a reason for an intervention.

For example, I choose to back into my parking spot in my neighborhood at least some of the time for the reason of charging. I usually hit “Preference” for this, but it sends a false positive to Tesla that there was a reason I took over that I was unhappy with.

Tesla begins probing owners on FSD’s navigation errors with small but mighty change

Instead, I’m simply performing a maneuver that is not yet available to us. When Tesla allows drivers to choose the orientation at which their car enters a parking spot, I and many others won’t have to deal with this menu.

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Others are still skeptical that it will help resolve any issues whatsoever and prefer to disregard the menu altogether. It does seem as if Tesla will issue another revision in the coming days to allow this to happen.

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Lifestyle

California hits Tesla Cybercab and Robotaxi driverless cars with new law

California just gave police power to ticket driverless cars, including Tesla’s Cybercab fleet.

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Concept rendering of Tesla Cybercab being cited by CA Highway Patrol (Credit: Grok)

California DMV formally adopted new rules on April 29, 2026 that allow law enforcement to issue “notices of noncompliance”, or in other words ticket autonomous vehicle companies when their cars commit moving violations. The rules take effect July 1, 2026 and officially closes a regulatory gap that previously let driverless cars operate on public roads with nearly no traffic enforcement consequences.

Until now, state traffic laws only applied to human “drivers,” which meant that when no person was behind the wheel, police had no mechanism to issue a ticket. Officers were limited to citing driverless vehicles for parking violations only. A well-known example came in September 2025, when a San Bruno officer watched a Waymo robotaxi execute an illegal U-turn and could do nothing but notify the company.

Under the new framework, when an officer observes a violation, the autonomous vehicle company is effectively treated as the driver. Companies must report each incident to the DMV within 72 hours, or 24 hours if a collision is involved. Repeated violations can result in fleet size restrictions, operational suspensions, or full permit revocation. Local officials also gained new authority to geofence driverless vehicles out of active emergency zones within two minutes and require a live emergency response line answered within 30 seconds.

Tesla Cybercab ramps Robotaxi public street testing as vehicle enters mass production queue

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California’s new enforcement rules arrive at a pivotal moment for Tesla. The company is ramping Cybercab production at Giga Texas toward hundreds of units per week, targeting at least 2 million units annually at full capacity, while simultaneously pushing to expand its Robotaxi service to dozens of U.S. cities by end of 2026. Unsupervised FSD for consumer vehicles is currently targeted for Q4 2026, and when it arrives, Tesla’s fleet may not have a human to absorb legal accountability, under the July 1 rules.

Tesla has confirmed plans to expand its Robotaxi service to seven new cities in the first half of 2026, including Dallas, Houston, Phoenix, Miami, Orlando, Tampa, and Las Vegas, with the service already running without safety drivers in Austin. Musk has said he expects robotaxis to cover between a quarter and half of the United States by end of year.

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