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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 launches new Model Y interior option

Produced at Gigafactory Shanghai, the update applies to all five-seat Premium Model Y configurations and started being seen on customer deliveries this week. The move marks the first major interior refresh for the compact crossover since its global debut.

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Credit: Tesla Malaysia | X

Tesla has rolled out a striking new interior choice for its best-selling Model Y in China, replacing the long-familiar white cabin with a fresh option: Zen Grey.

Produced at Gigafactory Shanghai, the update applies to all five-seat Premium Model Y configurations and started being seen on customer deliveries this week. The move marks the first major interior refresh for the compact crossover since its global debut.

The Zen Grey interior swaps the classic black-and-white contrast for a softer, more unified palette. Seats, door panels, and center console trim now feature a warm light-grey tone that covers far more surface area than before.

Previously, black accents on the console, door handles, and lower dashboard are now color-matched in the same pebbled vegan leather, creating a brighter, less clinical cabin.

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Tesla describes the material as durable and easy to maintain while delivering a noticeably more premium feel. Early photos and videos from Chinese owners show the new shade reflecting natural light beautifully, giving the spacious Model Y an even airier, more inviting atmosphere without sacrificing the minimalist design customers expect:

The change is not an added-cost upgrade but a direct replacement for the discontinued white interior on Shanghai-built vehicles. Customers configuring a new Model Y in China, Hong Kong, or Macau now see Zen Grey as the default light-colored choice.

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The update also flows to export markets supplied by Giga Shanghai, including Australia, New Zealand, South Korea, Japan, and the Philippines. Tesla has used its Chinese factory as an innovation hub before, and executives appear to be testing broader appeal with this subtler, warmer tone that avoids the high-maintenance reputation sometimes associated with bright white leather.

Beyond the interior, the refreshed Model Y from Shanghai includes minor exterior tweaks such as blacked-out badges on some trims and optional dark 20-inch wheels.

These changes arrive as Tesla faces stiff competition from domestic EV makers in its largest market. By refreshing the Model Y’s cabin without raising prices, the company is signaling continued commitment to value and constant improvement.

With over 1.2 million Model Y units already on Chinese roads, the Zen Grey launch gives existing owners a fresh talking point and new buyers another reason to choose Tesla. As deliveries ramp up this month, the updated interior is expected to become the dominant light-colored choice across the Asia-Pacific region.

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Tesla has not yet confirmed whether the Zen Grey will reach Fremont, Austin, or Berlin-built Model Ys, but Shanghai’s track record suggests the option could spread quickly if customer feedback remains strong.

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Tesla launches 200mph Model S “Gold” Signature in invite-only purchase

Tesla’s final 350-unit Signature Edition closes the book on two cars that changed everything.

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Tesla has announced a super limited Signature Edition run of 250 Model S Plaid and 100 Model X Plaid units as an invite only purchase in a bid to give its original flagship vehicles a proper send-off.

When the Model S first launched in 2012, the first 1,000 units sold were “Signature” editions that required a $40,000 deposit and cost nearly $100,000 each. Those early buyers were Tesla’s first real believers. This new Signature Edition deliberately echoes that moment, bookending a 14-year run with numbered collector hardware.

Both models are finished in an exclusive Garnet Red paint not available on any current Tesla production vehicle, with gold Tesla T badges up front, a gold Plaid badge and Signature badge at the rear, and a white Alcantara interior featuring gold Plaid seat badges, gold piping, Signature-marked door sills, and a numbered dash plate. The Model S adds carbon ceramic brakes with gold calipers. Every unit ships with Tesla’s Luxe Package, bundling Full Self-Driving (Supervised), four years of Premium Service, free lifetime Supercharging, and a Signature Edition key fob. Both are priced at $159,420, a roughly $35,000 premium over standard Plaid inventory.

The discontinuation is part of a broader strategic shift. At Tesla’s Q4 2025 earnings call, Musk described the decision as “slightly sad” but necessary, saying: “It’s time to basically bring the Model S and X programs to an end with an honorable discharge, because we’re really moving into a future that is based on autonomy.”

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The Fremont factory floor that built these cars is being converted to manufacture Optimus humanoid robots, with a target of one million units annually.

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Tesla FSD in Europe vs. US: It’s not what you think

Tesla FSD is approved in the Netherlands, but the European version differs from what US drivers use.

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Tesla FSD 14.3 [Credit: TESLARATI)

On April 10, 2026, the Dutch vehicle authority RDW granted Tesla the first European type approval for Full Self-Driving Supervised, making the Netherlands the first country on the continent to authorize Tesla’s semi-autonomous system for customer use on public roads.

As Teslarati reported, the RDW approval followed 18 months of testing, more than 1.6 million kilometers driven on EU roads, 13,000 customer ride-alongs, and documentation covering over 400 compliance requirements. Tesla Europe had been running public demo drives through cities like Amsterdam and Eindhoven since early 2026, giving passengers their first experience of the system on European streets.


The European version of FSD is not the same software US drivers use. The RDW’s own statement is direct, noting that the software versions and functionalities in the US and Europe “are therefore not comparable one-to-one.” We’ve compile a table below that captures the most significant differences between US-based Tesla FSD vs. European Tesla FSD that’s based on what regulators and Tesla have publicly confirmed.

Feature FSD US FSD Europe (Netherlands)
Regulatory framework Self-certification, post-market oversight Pre-market type approval required (UN R-171 + Article 39)
Hands requirement Hands-off permitted on highway Hands must be available to take over immediately
Auto turning from stop lights Available — navigates intersections, turns, and traffic signals autonomously Available in EU build — confirmed in Amsterdam demo footage handling unprotected turns and signalized intersections
Driving modes Multiple profiles including a more aggressive “Mad Max” mode EU build is more conservative by default and errs on the side of restraint when it cannot confirm the limit
Summon Available — Smart Summon navigates parking lots to driver Status unclear — not confirmed as part of the RDW-approved feature set; urban FSD approval targeted separately for 2027
Driver monitoring Camera-based eye tracking Stricter continuous monitoring with more frequent intervention alerts
Software version FSD v14.3 EU-specific builds that must be separately validated by RDW
Geographic restriction US, Canada, China, Mexico, Australia, NZ, South Korea Netherlands only; EU-wide vote pending summer 2026
Subscription price $99/month €99/month
Full urban FSD scope Available Partial — separate urban application planned for 2027

The approval comes as Tesla is under real pressure to grow FSD subscriptions globally. Musk’s 2025 CEO compensation package, approved by shareholders, includes a milestone requiring 10 million active FSD subscriptions as one condition for his stock awards to vest. Tesla hit one million subscriptions during its Q4 2025 earnings call, which is a meaningful start, but still a long way from the target. Opening Europe as a market for subscriptions, rather than just hardware sales, directly accelerates that number.

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Tesla has said it anticipates EU-wide recognition of the Dutch approval during summer 2026, which would extend FSD access to Germany, France, and other major markets through a mutual recognition process without each country repeating the full 18-month review. That timeline is Tesla’s projection, not a confirmed regulatory outcome. As Musk acknowledged at Davos in January 2026, “We hope to get Supervised Full Self-Driving approval in Europe, hopefully next month.”

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