Update: Pre-2024 Model 3 trunk specs added on 9/16/23.
The Tesla Model 3 Highland has been making headlines in the past several weeks, as many have been able to take their first looks at the refreshed vehicle. Ahead of initial deliveries, some specifications for the refreshed Model 3 have surfaced — most recently including measurements for the frunk and trunk.
X user @DerCaspar shared photos of the Model 3 Highland on display at the Mall of Berlin on Friday, along with measurements for the newly redesigned vehicle’s frunk and trunk. Additionally, Caspar shared details about the sub-trunk, the small space beneath the floor of the trunk.
Check out the trunk, sub-trunk and frunk measurements below, according to Caspar:
Tesla Model 3 Highland trunk
– back row up 107 cm (~42.1 inches)
– back row down till seat 187 cm (~73.6 inches)
– back row down till seat moved 210 cm (~82.7 inches)
– back row down till front screen 270 cm (~106.3 inches)
– width between wheel covers 94 cm (~37 inches)
– width between back row hand bars 129.5 cm (~51 inches)
– height trunk opening 46 cm (~18.1 inches)
Tesla Model 3 Highland sub-trunk
– height till sub-trunk cover 29 cm (~11.4 inches)
– narrowest width 63 cm (~24.8 inches)
– narrowest depth 32 cm (~12.6 inches)
Tesla Model 3 Highland frunk
– frunk height 23 cm (~9.1 inches)
– frunk width 72 cm (~28.3 inches)
– frunk depth 35 cm (~13.8 inches)
You can see Caspar’s full thread on X below, where he details his initial impressions of the Model 3 Highland.
Tesla Model 3 Highland
I am seeing it first hand for the first time and will post measurements during the next hour as go through the car – it looks and feels awesome 🤩
Come along pic.twitter.com/d1lXQT1T3v
— Caspar – creating a positive future ✨ (@CasparThomale) September 15, 2023
Caspar also updated the thread with a German forum showing the pre-Highland Model 3’s trunk, sub-trunk and frunk dimensions. It’s worth noting that the measurements aren’t all taken the exact same way. As one example, Caspar measured the sub-trunk width and depth at its narrowest points, while the forum user measured the old Model 3’s depth at its deepest point.
Still, comparing the two sets of dimensions can provide a pretty good comparison point for the refreshed Highland Model 3.
You can head to the forum to see pictures showing how each dimension was measured.
Pre-2024 Tesla Model 3 (non-Highland) trunk
– back row up 107 cm (~42.1 inches)
– back row down till seat 190 cm (~74.8 inches)
– back row down till seat moved completely forward 206 cm (~81.1 inches)
– width between wheel covers 94 cm (~37 inches)
– height trunk opening 46 cm (~18.1 inches)
Pre-2024 Tesla Model 3 (non-Highland) sub-trunk
– height 30 cm (~11.8 inches)
– deepest depth 46 cm (~18.1 inches)
– width 61 cm (~24 inches)
Pre-2024 Tesla Model 3 (non-Highland) frunk
– frunk height 20 cm (~7.9 inches)
– frunk depth 38 cm (~15 inches)
– frunk width at 71 cm (~28 inches)
Other features in the Tesla Model 3 Highland
In addition to providing measurements for the trunk, sub-trunk and frunk spaces, Caspar later noted a few of his favorite features in the Model 3 Highland. These included the infotainment screen in the back row, the updated headlights and general Model S-like exterior appearance, and the car’s upgraded sound dampening.
He also notes the ability to control climate and seat heating separately for the right and left rear passengers and the customizable ambient lighting strip across the front interior of the car as impressive updates. Later in the thread, a few users also pointed out that the rear fog lights flash when the trunk is opened, which is another new feature for the refreshed Model 3. When asked if he was able to try the new ventilated seats, Caspar said he hasn’t, though he plans to.
In recent weeks, users have also pointed out the Model 3 Highland’s new features, such as Auto-Shift out of Park, updated airbag placement, a blindspot indicator and several other upgrades. Earlier this week, the Model 3 Highland’s size was also revealed after the vehicle was officially registered with the China Ministry of Industry and Information Technology.
What are your thoughts? Let me know at zach@teslarati.com, find me on X at @zacharyvisconti, or send your tips to us at tips@teslarati.com.
News
Tesla intertwines FSD with in-house Insurance for attractive incentive
Every mile logged under FSD now carries a documented financial value—lower risk, lower cost—based on Tesla’s internal driving data rather than external crash statistics alone.
Tesla intertwined its Full Self-Driving (Supervised) suite with its in-house Insurance initiative in an effort to offer an attractive incentive to drivers.
Tesla announced that its new Safety Score 3.0 will automatically have a perfect score of 100 with every mile driven with Full Self-Driving (Supervised) enabled.
The change is designed to boost customers’ average safety scores and deliver noticeably lower monthly premiums.
The move marks the clearest link yet between Tesla’s autonomous driving technology and its proprietary insurance product. Tesla Insurance already relies on real-time vehicle data—such as acceleration, braking, following distance, and speed—to calculate a Safety Score between 0 and 100. Higher scores have long translated into cheaper rates.
Under the previous system, however, even brief manual interventions could drag down the average, frustrating owners who rely heavily on FSD. Version 3.0 eliminates that penalty for supervised autonomous miles, effectively treating FSD-driven segments as the safest possible driving behavior.
The incentive is immediate and financial. Drivers who keep FSD engaged for the majority of their trips will see their overall score rise, potentially shaving hundreds of dollars off annual premiums.
Tesla framed the update as a direct response to customer feedback, many of whom had complained that the old scoring model punished the very behavior it was meant to encourage.
For now, the program applies only to new policies in six states: Indiana, Tennessee, Texas, Arizona, Virginia, and Illinois.
Existing policyholders are not yet included, a point that drew swift questions from the Tesla community. Many owners in other states, including California and Georgia, expressed hope that the benefit would expand nationwide soon.
The announcement arrives as Tesla continues to roll out FSD Supervised updates and push for regulatory approval of more advanced autonomy. By tying insurance savings directly to FSD usage, the company is putting its own actuarial weight behind the technology’s safety claims.
Every mile logged under FSD now carries a documented financial value—lower risk, lower cost—based on Tesla’s internal driving data rather than external crash statistics alone.
Tesla has not disclosed exact premium reductions or the full rollout timeline beyond the six launch states.
Still, the message is clear: the more drivers trust FSD Supervised, the more Tesla Insurance will reward them. In an era when legacy insurers remain cautious about autonomous tech, Tesla is betting that its own data will prove the safest miles are the ones driven hands-free.
Elon Musk
Tesla finalizes AI5 chip design, Elon Musk makes bold claim on capability
The Tesla CEO’s words mark a strategic shift. Tesla has long emphasized software-hardware co-design, squeezing maximum performance from every transistor. Musk previously described AI5 as optimized for edge inference in both Robotaxi and Optimus.
Tesla has finalized its chip design for AI5, as Elon Musk confirmed today that the new chip has reached the tape-out stage, the final step before mass production.
But in a brief reply on X, Musk clarified Tesla’s AI hardware roadmap, essentially confirming that the new chip will not be utilized for being “enough to achieve much better than human safety for FSD.”
He said that AI4 is enough to do that.
Instead, the AI5 chip will be focused on Tesla’s big-time projects for the future: Optimus and supercomputer clusters.
Musk thanked TSMC and Samsung for production support, noting that AI5 could become “one of the most produced AI chips ever.” Yet, the key pivot came in his direct answer: vehicles no longer need the bleeding-edge silicon.
And thank you to @TaiwanSemi_TSC and @Samsung for your support in bringing this chip to production! It will be one of most produced AI chips ever.
— Elon Musk (@elonmusk) April 15, 2026
Existing AI4 hardware, which is already deployed in hundreds of thousands of HW4-equipped Teslas, delivers safety metrics superior to human drivers for Full Self-Driving. AI5 will instead accelerate Optimus robot development and massive Dojo-style training clusters.
The Tesla CEO’s words mark a strategic shift. Tesla has long emphasized software-hardware co-design, squeezing maximum performance from every transistor. Musk previously described AI5 as optimized for edge inference in both Robotaxi and Optimus.
Now, with AI4 proving sufficient, the company avoids costly retrofits across its fleet while redirecting next-generation compute toward higher-value applications: dexterous robots and exponential training scale.
But is it reasonable to assume AI4 enables unsupervised self-driving? Yes, but with important caveats.
On the hardware side, the claim is credible. Tesla’s FSD stack runs end-to-end neural networks trained on billions of miles of real-world data. Internal safety data reportedly shows AI4-equipped vehicles already outperforming average human drivers by a significant margin in controlled metrics (collision avoidance, reaction time, edge-case handling).
Dual-redundant AI4 chips provide ample headroom for the driving task, leaving bandwidth for future model improvements without new silicon. Musk’s assertion aligns with Tesla’s pattern of over-provisioning compute early, then optimizing ruthlessly, exactly as HW3 once sufficed before HW4 scaled further.
Optimus and our supercomputer clusters.
AI4 is enough to achieve much better than human safety for FSD.
— Elon Musk (@elonmusk) April 15, 2026
Unsupervised autonomy, meaning Level 4 or higher, is not solely a compute problem. Regulatory approval remains the primary gate.
Even if AI4 achieves “much better than human” safety statistically, agencies like the NHTSA demand exhaustive validation, liability frameworks, and public trust.
Tesla’s supervised FSD has shown rapid gains in recent versions, yet real-world edge cases, like construction zones, emergency vehicles, and adverse weather, still require driver intervention in many jurisdictions. Competitors like Waymo operate limited unsupervised fleets, but only in geofenced areas with extensive mapping. Tesla’s vision-only, fleet-scale approach is more ambitious—and harder to certify globally.
In short, Musk’s post is both pragmatic and bullish. AI4 is likely capable of unsupervised FSD from a technical standpoint. Whether regulators and consumers agree, and how quickly, will determine if Tesla’s bet pays off.
The company’s capital-efficient path keeps existing cars relevant while pouring future compute into robots. If the safety data holds, unsupervised autonomy could arrive sooner than many expect.
Elon Musk
Elon Musk signals expansion of Tesla’s unique side business
Long envisioning the Tesla Diner as more than a charging stop, Musk has clearly adopted the idea that the Supercharger and Restaurant combo is a good thing for the company to have. It’s a blend of classic American drive-in culture with futuristic Tesla flair, complete with a 1950s-inspired design, movie screens, and on-site dining.
Elon Musk has signaled an expansion of Tesla’s unique side business, something that really has nothing to do with cars or spaceships, but fans of the company have truly adopted it as just another one of its awesome ventures.
Musk confirmed on Wednesday that Tesla would build a new Diner location in Palo Alto, Northern California. After hinting last October that it “probably makes sense to open one near our Giga Texas HQ in Austin and engineering HQ in Palo Alto,” it seems one of those locations is being set into motion.
Sure
— Elon Musk (@elonmusk) April 15, 2026
Long envisioning the Tesla Diner as more than a charging stop, Musk has clearly adopted the idea that the Supercharger and Restaurant combo is a good thing for the company to have. It’s a blend of classic American drive-in culture with futuristic Tesla flair, complete with a 1950s-inspired design, movie screens, and on-site dining.
He first floated broader expansion plans shortly after the LA opening in July 2025, noting that if the prototype succeeded, Tesla would roll out similar venues in major cities worldwide and along long-distance Supercharger routes.
Earlier hints included a confirmed second site at Starbase in Texas, tied to SpaceX operations, underscoring the Diner’s role in enhancing Tesla’s ecosystem behind vehicles.
The Los Angeles location on Santa Monica Boulevard in West Hollywood has served as a high-profile test case. Opened in July 2025 at 7001 Santa Monica Blvd., it features the world’s largest urban Supercharging station with 80 V4 stalls open to all NACS-compatible EVs, over 250 dining seats, rooftop views, and 24/7 service.
The retro-futuristic building replaced a former Shakey’s and quickly became a destination. Tesla reported selling 50,000 burgers in the first 72 days—an average of over 700 daily—drawing crowds with Cybertruck-shaped packaging, breakfast extensions until 2 p.m., and movie screenings.
Palo Alto stands out as a logical next step for several reasons. As Tesla’s longstanding engineering headquarters in the heart of Silicon Valley, the city is home to thousands of Tesla employees, engineers, and executives who could benefit from a convenient, branded gathering spot.
The area boasts high EV adoption rates, dense tech talent, and heavy traffic along key corridors, making a large Supercharger-diner an ideal fit for both daily commuters and long-haul travelers.
Proximity to Stanford University and the innovation ecosystem would amplify its appeal, potentially serving as a showcase for Tesla’s vision of integrated mobility and lifestyle experiences. It could be a great way for Tesla to recruit new talent from one of the country’s best universities.
If Tesla and Musk decide to move forward with a Palo Alto diner, it would build directly on the LA prototype’s momentum while addressing Musk’s earlier calls for expansion near core Tesla hubs.
Whether it materializes as a full confirmation or evolves from these hints remains to be seen, but the pattern is clear: Tesla is testing ways to make charging stops memorable. For EV drivers and enthusiasts alike, a Silicon Valley outpost could blend cutting-edge tech with nostalgic comfort, further embedding Tesla into everyday culture. As Musk’s comments suggest, the future of the Diner looks promising.