It appears that Tesla’s rear casting and structure improvements for the Model Y have been designed to improve the safety of passengers who will occupy the vehicle’s future third row of seats.
As Sandy Munro continues to dive into the company’s new all-electric crossover, several clues hint toward the vehicle’s improved rear safety design. Munro mentions multiple design improvements that range from thicker longitudinal bars to prevent crunching in the even of an accident, to new bolt shapes that decrease weight and improve durability.
Munro first looks at the castings on the side rails of the Model Y. The attachment points on each side of the car indicate they are one piece and are not welded on. “They’re plenty strong, and you can see they’re just cast in place,” he said. Also, the under-seat points are 3 to 3.5mm thick. Munro suggests Tesla moved added density to other areas that may be more susceptible to being compromised in an accident. “There is a lot of good stuff here. I like that.”
According to Munro, Model Y has improved fixture points on the rear longitudinals that run from the front to the back of the car. While the two bolts on the front of the longitudinals are standard, the top bolt on the rear end is scooped out. “These are common on Japanese cars. See how it’s dished out? The Japanese use this for weight reduction, but it is also good for a shear bolt. So my guess is this may be something to do with crashworthiness,” Munro said.
Shear bolts are commonly used to protect equipment from sudden impact or excessive load. They are often referred to as “anti-theft bolts” and popular among assemblies that may be subjected to occurrences of excessive force. However, they are ideal for safety and an accident would maintain the structural integrity of the rear portion of the car, keeping those seated in the back safe from injury during a violent collision.
Speculation from the Detroit veteran suggests the Model Y’s third row of seats will be rear-facing, especially as the design of the mounting brackets only leads Munro to believe that the sixth and seventh passengers will be looking out of the vehicle’s rear windshield.
“We can’t see anything that says that we’re going to be putting front-facing seats. But, we sure can see where it could be a potential there for rear-facing seats,” Munro said.
A video Munro posted on April 4 to the company YouTube channel examined the Model Y’s potential for rear-facing third-row seats. Munro hopped into the trunk of the crossover and was impressed by the size and spaciousness, and mentioned that it was “semi-comfortable” and may be best for children based on its storage design.
Based on what is known about Tesla’s previous and upcoming third-row seating options, the design would likely be rear-facing. Jump seats in the Model S were popular among the sedan’s owners before the release of the Model X. Additionally, the upcoming release of the Plaid Mode Model S will include rear-facing jump seats that will support larger passengers instead of just children.
The Model Y was always aimed toward being the safest midsize SUV on the road. With the inclusion of an optional third row of seats, the Model Y’s rear collision safety had to be revamped and rejuvenated. The addition of shear bolts for durability and increased thickness in some areas for added strength was likely added to improve the safety of third-row passengers in an accident.
Watch Munro’s video of the improved rear castings and safety design of the Model Y below.
News
Tesla FSD (Supervised) fleet passes 8.4 billion cumulative miles
The figure appears on Tesla’s official safety page, which tracks performance data for FSD (Supervised) and other safety technologies.
Tesla’s Full Self-Driving (Supervised) system has now surpassed 8.4 billion cumulative miles.
The figure appears on Tesla’s official safety page, which tracks performance data for FSD (Supervised) and other safety technologies.
Tesla has long emphasized that large-scale real-world data is central to improving its neural network-based approach to autonomy. Each mile driven with FSD (Supervised) engaged contributes additional edge cases and scenario training for the system.
The milestone also brings Tesla closer to a benchmark previously outlined by CEO Elon Musk. Musk has stated that roughly 10 billion miles of training data may be needed to achieve safe unsupervised self-driving at scale, citing the “long tail” of rare but complex driving situations that must be learned through experience.
The growth curve of FSD Supervised’s cumulative miles over the past five years has been notable.
As noted in data shared by Tesla watcher Sawyer Merritt, annual FSD (Supervised) miles have increased from roughly 6 million in 2021 to 80 million in 2022, 670 million in 2023, 2.25 billion in 2024, and 4.25 billion in 2025. In just the first 50 days of 2026, Tesla owners logged another 1 billion miles.
At the current pace, the fleet is trending towards hitting about 10 billion FSD Supervised miles this year. The increase has been driven by Tesla’s growing vehicle fleet, periodic free trials, and expanding Robotaxi operations, among others.
With the fleet now past 8.4 billion cumulative miles, Tesla’s supervised system is approaching that threshold, even as regulatory approval for fully unsupervised deployment remains subject to further validation and oversight.
Elon Musk
Elon Musk fires back after Wikipedia co-founder claims neutrality and dubs Grokipedia “ridiculous”
Musk’s response to Wales’ comments, which were posted on social media platform X, was short and direct: “Famous last words.”
Elon Musk fired back at Wikipedia co-founder Jimmy Wales after the longtime online encyclopedia leader dismissed xAI’s new AI-powered alternative, Grokipedia, as a “ridiculous” idea that is bound to fail.
Musk’s response to Wales’ comments, which were posted on social media platform X, was short and direct: “Famous last words.”
Wales made the comments while answering questions about Wikipedia’s neutrality. According to Wales, Wikipedia prides itself on neutrality.
“One of our core values at Wikipedia is neutrality. A neutral point of view is non-negotiable. It’s in the community, unquestioned… The idea that we’ve become somehow ‘Wokepidea’ is just not true,” Wales said.
When asked about potential competition from Grokipedia, Wales downplayed the situation. “There is no competition. I don’t know if anyone uses Grokipedia. I think it is a ridiculous idea that will never work,” Wales wrote.
After Grokipedia went live, Larry Sanger, also a co-founder of Wikipedia, wrote on X that his initial impression of the AI-powered Wikipedia alternative was “very OK.”
“My initial impression, looking at my own article and poking around here and there, is that Grokipedia is very OK. The jury’s still out as to whether it’s actually better than Wikipedia. But at this point I would have to say ‘maybe!’” Sanger stated.
Musk responded to Sanger’s assessment by saying it was “accurate.” In a separate post, he added that even in its V0.1 form, Grokipedia was already better than Wikipedia.
During a past appearance on the Tucker Carlson Show, Sanger argued that Wikipedia has drifted from its original vision, citing concerns about how its “Reliable sources/Perennial sources” framework categorizes publications by perceived credibility. As per Sanger, Wikipedia’s “Reliable sources/Perennial sources” list leans heavily left, with conservative publications getting effectively blacklisted in favor of their more liberal counterparts.
As of writing, Grokipedia has reportedly surpassed 80% of English Wikipedia’s article count.
News
Tesla Sweden appeals after grid company refuses to restore existing Supercharger due to union strike
The charging site was previously functioning before it was temporarily disconnected in April last year for electrical safety reasons.
Tesla Sweden is seeking regulatory intervention after a Swedish power grid company refused to reconnect an already operational Supercharger station in Åre due to ongoing union sympathy actions.
The charging site was previously functioning before it was temporarily disconnected in April last year for electrical safety reasons. A temporary construction power cabinet supplying the station had fallen over, described by Tesla as occurring “under unclear circumstances.” The power was then cut at the request of Tesla’s installation contractor to allow safe repair work.
While the safety issue was resolved, the station has not been brought back online. Stefan Sedin, CEO of Jämtkraft elnät, told Dagens Arbete (DA) that power will not be restored to the existing Supercharger station as long as the electric vehicle maker’s union issues are ongoing.
“One of our installers noticed that the construction power had been backed up and was on the ground. We asked Tesla to fix the system, and their installation company in turn asked us to cut the power so that they could do the work safely.
“When everything was restored, the question arose: ‘Wait a minute, can we reconnect the station to the electricity grid? Or what does the notice actually say?’ We consulted with our employer organization, who were clear that as long as sympathy measures are in place, we cannot reconnect this facility,” Sedin said.
The union’s sympathy actions, which began in March 2024, apply to work involving “planning, preparation, new connections, grid expansion, service, maintenance and repairs” of Tesla’s charging infrastructure in Sweden.
Tesla Sweden has argued that reconnecting an existing facility is not equivalent to establishing a new grid connection. In a filing to the Swedish Energy Market Inspectorate, the company stated that reconnecting the installation “is therefore not covered by the sympathy measures and cannot therefore constitute a reason for not reconnecting the facility to the electricity grid.”
Sedin, for his part, noted that Tesla’s issue with the Supercharger is quite unique. And while Jämtkraft elnät itself has no issue with Tesla, its actions are based on the unions’ sympathy measures against the electric vehicle maker.
“This is absolutely the first time that I have been involved in matters relating to union conflicts or sympathy measures. That is why we have relied entirely on the assessment of our employer organization. This is not something that we have made any decisions about ourselves at all.
“It is not that Jämtkraft elnät has a conflict with Tesla, but our actions are based on these sympathy measures. Should it turn out that we have made an incorrect assessment, we will correct ourselves. It is no more difficult than that for us,” the executive said.
Tesla FSD (Supervised) fleet passes 8.4 billion cumulative miles
Elon Musk fires back after Wikipedia co-founder claims neutrality and dubs Grokipedia “ridiculous”
