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The Tesla Semi’s recent Giga 1 sighting highlights its difference from other concept trucks
To say that the Tesla Semi ruffled some feathers when it was unveiled last year is an understatement. Prior to the reveal of all-electric truck, questions were abounding about its viability as an alternative to conventional diesel-powered long-haulers. Even after the Semi’s specs and performance were announced, the vehicle still attracted a lot of skepticism.
During an event for Daimler’s e-Actos electric truck, for example, the company’s Head of Trucks, Martin Daum, noted that Elon Musk’s claims about the Semi’s 300 and 500-mile range are farfetched. Citing limitations in battery tech, Daum stated that “If Tesla really delivers on this promise, we’ll obviously buy two trucks — one to take apart and one to test because if that happens, something has passed us by. But for now, the same laws of physics apply in Germany and in California.” Jon Mills, a spokesman for engine maker Cummins Inc. noted back in August that while electrification is in the future of the trucking industry, the vehicles are not viable in their current state.
Since it was unveiled, the Tesla Semi has been spotted traveling across the United States. Tesla unveiled two working prototypes of the Semi – one painted silver and the other matte black – when it unveiled the vehicle, and so far, both have been spotted testing on US roads. Both trucks were also sighted delivering cargo from Gigafactory 1 in NV to the Fremont factory in CA. Most recently, the silver Tesla Semi was sighted in Gigafactory 1, hauling a trailer and seemingly ready to transport cargo.
Tesla is not the only manufacturer coming up with a zero-emissions truck. As the transport industry starts accelerating its shift towards electrification, even prominent truck companies are coming up with their own green vehicles. Most of these vehicles exist as concepts for now, but they do give an idea of how veteran truckmakers are approaching the industry’s transition to the electric age.
Ford, for one, recently revealed the F-Vision concept, which is loaded to the teeth with cutting-edge tech, including an adaptable windshield that can lower and rise depending on the driver’s preference, as well as front lights that can be fully customized. Last month, Volvo introduced the Vera, its next-generation semi-trailer concept. Unlike Tesla and Ford’s truck, Volvo’s vehicle does not even have a driver’s cabin, as it is designed fully for autonomy. Startup trucking companies are also showcasing their offerings. Nikola Motors, for one, made headlines when it unveiled its long-range sleeper hydrogen-electric truck – the Nikola One – back in December 2016, and the company has since teased its next offering, a day cab called the Nikola Two.
There is little doubt that the upcoming electric truck concepts that have been unveiled so far are exciting vehicles in their own right. Inasmuch as this is the case, though, many of these impressive concepts feature technology that is still yet to be developed or refined. During the F-Vision’s unveiling, for one, Ford clarified that the truck is strictly a concept for now. Volvo’s Vera is a perfect fit for short-haul trips thanks to its 300 kWh battery that gives it a 187-mile range, but the vehicle can’t be deployed anytime soon since self-driving tech is still under development (even autonomous tech leader Waymo is reportedly struggling with its fleet’s real-world testing). Nikola’s hydrogen-electric trucks are powerful and boast long-range, but they would need a network of H2 refilling stations before they can be a viable alternative to diesel trucks. As a result, most zero-emissions truck concepts, including the Nikola One prototype, are yet to be sighted doing real-world tests on public roads.
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- The Volvo Vera. [Credit: Volvo]
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- The Ford F-Vision concept. [Credit: Ford]
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- The Nikola One
This is where the Tesla Semi is different. Among the upcoming electric trucks in the market, the Semi is the one undergoing consistent, intensive real-world testing. The vehicle has been spotted in multiple states since its unveiling, at times even visiting the sites of reservation holders like UPS, J.B. Hunt and PepsiCo. As it conducts its extensive real-world tests, the vehicle undergoes a consistent process of improvement. This was highlighted by Tesla’s Head of Automotive Jerome Guillen during the Q2 2018 earnings call, when he stated that several improvements have already been introduced to the electric truck since it was unveiled last year. Elon Musk even teased on Twitter that the Semi would likely have closer to 600 miles of range per charge. With this, it seems safe to infer that the production version of the Tesla Semi would be better than the prototype that is currently traveling across the country today.
The Tesla Semi balances its features without overdoing it as well. It does not have the cloud-based autonomy of concepts like the Vera or the flashy variable front design of the Ford F-Vision, but ultimately, it does not need to have all these extra bells and whistles to become effective at what it’s designed to do. Tesla created the Semi to be a viable alternative to diesel-powered long-haulers, and if recent sightings and its consistent road tests is any indication, it appears that the vehicle is poised to be exactly that.
The Tesla Semi is expected to start production sometime in 2019. Recent reports have indicated that Tesla is planning on “earnestly” producing the Semi sometime in 2020.
Ahead of its highly anticipated unveiling, Tesla’s upcoming Roadster received a new patent that aims to keep it grounded while enabling white-knuckle speeds.
The patent, which was granted on September 29, is titled “Electric Car Fan,” bluntly stating its design but not its purpose, which is further detailed in the text of the application. Interestingly, it comes two weeks before the Roadster event, which was delayed due to unfavorable weather on Thursday, which could cause issues, as Tesla revealed the event must be held outdoors.
🚨 The design uses electrically driven ducted fans, typically shown as a row of four at the rear, powered by the vehicle’s high-voltage battery.
The fans pull air from an underbody inlet, route it through ducts, and expel it from a larger rear outlet that functions as a… https://t.co/CHQB9u9UA3 pic.twitter.com/QVXmWTdggh
— TESLARATI (@Teslarati) September 29, 2026
The purpose is to solve a problem that is relatively unique to high-performance electric cars. Instant motor torque is useless if the tires cannot plant that force, and conventional wings and underbody tunnels generate downforce only when air is already rushing past the car. At launch, in slow corners, and under hard braking from modest speed, passive aerodynamic additions contribute essentially very little to downforce.
Tesla’s filing says that its fans can produce the downforce needed, independent of vehicle velocity, then ease off so the same hardware does not pile on drag at highway speeds, an issue that can come from excessive body modifications.
The hardware outlined in the patent is a ducted-fan package that is placed into the rear of the vehicle. An underbody inlet between the rear wheels feeds a duct that rises to a wide outlet in the diffuser. In that outlet are four axial fans, which are divided by vertical strakes. They will pull air from under the floor and press the chassis onto the pavement.
The language in the patent claims it can cut drag rather than add to it while simultaneously increasing downforce.
Tesla Roadster event requires restricted airspace, and the FAA obliges
The fans run from the high-voltage battery and a vehicle control system, so output can be modulated rather than left on as a fixed penalty.
There are additional strengths that can come from this design, like extra tire load at low speed, which can contribute to even more face-melting acceleration rates, decrease stopping distance, and sharper turn-in before a wing has air to work with. Adjustable fan speed lets the car add grip only when needed, so it can be catered to the force of a turn or acceleration.
These designs were previously used, and banned, in some competitive settings. The Brabham BT46B was banned in F1 competition for using a similar fan design and being labeled as too effective.
Tesla still lists the Roadster as having a sub-two-second 0-60 MPH time and a 250-plus-MPH top speed, and there are expectations for a SpaceX cold-gas thruster package that could not only increase acceleration but potentially cause the vehicle to hover.
It is important to note that a patent is not a production part, and packaging four fans in a rear diffuser, managing noise, and potential debris are all things Tesla must consider. With that being said, the patent being granted shows Tesla is designing the Roadster to go fast, but it is also attempting to use unique strategies to combat any issues it might have at those speeds.
Tesla (NASDAQ: TSLA) showrooms have been picked clean ahead of the end of the third quarter of the year, as demand looks to be strong and delivery estimates for new vehicles are pushed into late 2026 and early 2027.
Tesla appears to have sold out of many of its Model 3 and Model Y trim levels in the United States, as only the Model Y RWD and Model Y All-Wheel-Drive are available for delivery before the end of the year.
Additionally, many showrooms are either completely empty or void of all but just one demo unit within the buildings themselves in an effort to bolster what could be one of Tesla’s best quarters in vehicle deliveries in recent memory.
I’m at Tesla right now and when I walked into their showroom I was shocked to see it basically empty.
I asked one of the people working there where all of the cars are “Gone – it’s the end of the quarter and we’ve sold out of everything… including the display vehicles”So… pic.twitter.com/rN7s3gE6sJ
— Devin Olsen (@DevinOlsenn) September 25, 2026
All the cars are gone from Tesla Century City!
All they have is Model Y L, a self-driving video playing on the background. I guess the best product is no product. Either that or they just sold the showroom cars. pic.twitter.com/mzCjWaXwww
— Whole Mars Catalog (@wholemars) September 26, 2026
Show room is empty. I asked and they have sold the demo cars too. Delivery numbers better be outstanding! pic.twitter.com/jq5N28Q6tZ
— Electric Brawl (@3lectricBrawl) September 22, 2026
Additionally, when I spoke to the guys at Tesla Mechanicsburg two weeks ago, when I returned the Model Y L, their third hauler of the week had just arrived, and every vehicle on it, along with every vehicle in their delivery lot, was accounted for and had a name attached to it for delivery.
Talking to the guys at the Mechanicsburg showroom on Friday, they couldn’t believe they had ANOTHER hauler coming in of cars for delivery—and each was accounted for
No car just sitting in inventory. They’re expecting a BIG quarter, and this is more than just the Y L https://t.co/ce801GkKVv
— TESLARATI (@Teslarati) September 21, 2026
Tesla saw a 25 percent increase in deliveries in Q2 compared to the same quarter the year before. The vast majority of the 480,126 units it delivered, 467,762 vehicles to be exact, were the Model 3 and Model Y.
In Q3 2025, Tesla delivered 497,099 vehicles, once again a figure that was dominated by the company’s two mass-market vehicles. Analysts have unusually wide predictions for this quarter, likely because so many firms missed the Q2 delivery figure by such a substantial margin; Wall Street predicted 408,000 cars, while Tesla delivered 480,000.
Goldman Sachs has Tesla slotted for 435,000 deliveries in Q3, while JPMorgan said it anticipates 482,000. The median guess is about 449,000 deliveries for Q3.
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Tesla’s Automatic Collision Evasion feature can be seen in one of the first owner videos of it in action.
Tesla owner Spencer (@scotsrule08) posted on Monday that the feature “worked flawlessly,” saying FSD reengaged itself just as he was about to hit a curb. Ashok Elluswamy, who leads Tesla’s AI team, shared the clip and wrote, “A guardian angel always looking out for you.”
The video arrives in the middle of a staged rollout. Tesla first shipped Automatic Collision Evasion with FSD (Supervised) v14.3.9 in software update 2026.27.6 earlier this month, which Teslarati covered as it reached cars. Update 2026.27.10, which began going out on September 19, carried the feature improvements with FSD v14.3.10, according to release notes tracked by Not a Tesla App. The newer 2026.27.11 build is now reaching another wave of vehicles.
The new Automatic Collision Evasion feature worked flawlessly! FSD reengaged itself just as I was about to hit a curb.
Kudos @Tesla_AI team! 👏 pic.twitter.com/Fbp15HhpL2
— Spencer (@scotsrule08) September 28, 2026
The feature only runs on HW4 vehicles, and it requires an active FSD purchase or subscription with both FSD (Supervised) and Automatic Emergency Braking enabled. HW3 owners receive FSD v14.2 Lite in the same updates, but that build does not include collision evasion.
Tesla’s release notes describe two triggers. The first is an imminent frontal collision that braking alone may not prevent, in which case the car can activate FSD to steer, brake or accelerate around the hazard. That scenario is limited to highways below 85 mph, with no pedestrians or cyclists detected and no slippery road surface. The second covers a driver who appears inattentive, such as reaching into the back seat, or who seems to have switched off FSD by accident. Spencer’s curb clip appears to fall into that second category.
Tesla plans big safety improvements for Full Self-Driving v15
Once the system takes over, the accelerator is muted and light brake input will not cancel the maneuver. Drivers need to apply firm, deliberate steering force to take back control, and the car chimes to hand control back once the danger has passed.
Elluswamy recently noted that earlier hazard prediction, faster reaction time and better collision avoidance would arrive with FSD v15, the next major version.
Tesla Roadster’s new patent preps white-knuckle speeds, keeping it grounded
Tesla showrooms picked clean ahead of Q3 end as demand looks strong
