Tesla’s opening sunroof is gone. Its fixed glass roof got smarter.

By Olivia Hart

Business Insider reported that Tesla’s Model 3, Model Y and Cybertruck use fixed glass roofs, while the 2027 Model Y L omits the opening panel once offered on the Model S. Tesla has not built a car with a movable sunroof for years.

In the Nov. 9, 2026 episode of “Jay Leno’s Garage,” chief designer Franz von Holzhausen explained the omission during a walkaround with Jay Leno. A recap from The Tesla Newswire said von Holzhausen and Lars Moravy addressed the decision and attributed the usage pattern to Moravy.

Leno asked, “There’s no sunroof anymore, right?” The recap said the executives confirmed the omission. Leno then compared tilting or opening sunroofs to a home hot tub: exciting at first, but less appealing after the novelty fades.

Why did Tesla remove the opening sunroof?

Von Holzhausen tied the decision to owner behavior. “I mean, we're a very data-driven company,” he said. “We looked at the data and realized that people use the sunroof when they maybe first get the car.”

The Tesla Newswire gave the usage pattern a tighter window: owners open the panel a lot during the first week or so, then almost never use it again. Neither Business Insider nor The Tesla Newswire supplied a retention rate, vehicle count or cost estimate.

The published evidence leaves Tesla’s central premise unquantified. Neither the report nor the recap shows how quickly usage fades, how broadly the pattern holds or what the mechanism costs.

Von Holzhausen also described Tesla’s old motorized sunroofs as “really complicated” and said they appeared “in service quite a bit.” He called the assemblies heavy and parts-intensive.

“It's just, you know, a lot of parts to build it,” he added. “If people aren't using it, why go through the hustle?” Business Insider reported that Tesla vehicles require fewer parts and fasteners than competitors’ vehicles.

That manufacturing advantage could give von Holzhausen’s argument a financial consequence beyond customer preference. For Tesla, a rarely used mechanism is now a manufacturing liability.

What changed on the Model Y L after the mechanism disappeared?

The Model Y L does not abandon the panoramic roof. According to The Tesla Newswire recap, Tesla retained and improved the fixed panoramic glass roof.

• The roof received a triple silver coating to reflect more heat and keep the cabin cooler.
• Tesla upgraded the laminated glass layers to reject heat and sunlight and block UVB and UVA, which the recap said worked “like the best sunscreen in the world.”
• The rear glass now extends to the spoiler, creating a squarer shape and better visibility.
• Tesla used thicker, insulated glass to reduce cabin noise.
• Tesla embedded the antennas in the glass, eliminating the external roof antenna.

Those upgrades target heat, visibility and noise, but the recap and Business Insider provided no measured temperature reduction, noise reduction or comparison with the Model Y roof. The case remains engineering-led rather than quantified in the source. Tesla removed the moving mechanism while making the sealed roof do more work.

How does the sunroof decision fit Tesla’s factory strategy?

Business Insider described manufacturing simplicity as a core Tesla strength and said its cars use fewer parts and fasteners than competitors. The same report said Tesla stopped making the Model S and Model X in April 2026.

Musk had once called the Model X a “Fabergé egg,” a reference to its complicated design and signature falcon-wing rear doors. That criticism now sits beside the company’s broader effort to remove difficult assemblies.

In the week before Nov. 9, 2026, Musk posted on X that Tesla would wind down Cybertruck production. On Monday, he cited the “opportunity cost of the complexity of Cybertruck.” The decisions are separate, but both favor fewer configurations and simpler assembly.

Neither the Business Insider report nor the episode recap disclosed the sunroof mechanism’s weight, parts count, warranty cost or service expense. Nor did they calculate savings from the Model S, Model X or Cybertruck retirements.

Together, the decisions suggest Tesla is applying one logic at feature and vehicle level: strip out complexity when management sees more cost than benefit. The 2027 Model Y L and Cybertruck wind-down will test whether simpler assembly creates more value than narrower customer choice.