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Tesla Semi truck pair spotted in “Convoy Mode” on CA highway

[Credit: Sergey MoldovanAmerican/YouTube]

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While Tesla’s pair of Semi trucks are usually spotted showcasing their tire-shredding acceleration and their impressive speed, a video taken of the two electric long-haulers in a CA freeway shows how the vehicles look when they are just cruising relaxedly on the road, almost as if they are in what Elon Musk dubbed during the truck’s unveiling as “Convoy Mode.”

The video was uploaded last week by YouTube user Sergey MoldovanAmerican, who stated that he spotted the Semi pair driving on a CA highway. The nearly 1-minute sighting featured the two electric Semis up close, giving a pretty good idea of the massive size of the electric trucks. The driver of the long-range, silver Semi seemed very relaxed, drinking and even candidly waving at the camera as the YouTuber’s vehicle passed his truck.

The 300-mile range, matte black Tesla Semi was just ahead of the silver Semi. From what could be seen in the video, the black Semi was pulling the same container it was hauling when it was spotted at a Supercharger earlier in March. The sighting was location-tagged at Danville, CA, which is 30 mins away from the Fremont factory via I-680 S.

The formation of the two electric trucks are reminiscent of what Elon Musk described as the Tesla Semi’s capability to drive in “Convoy Mode.” This particular feature enables a fleet of Semis to semi-autonomously draft in close proximity with each other, reducing energy usage from wind resistance.

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“The convoy technology, the tracking technology, this is something that we are confident we can today do ten times safer than a human driver. I want to be clear, this is something we can do now,” Musk said during the unveiling.

Sightings of the Tesla Semi over the past month have become more frequent, with Tesla fans spotting the electric long-hauler on various locations across the country. Not long after the Tesla Semi pair were spotted on the Rocklin Supercharger, the long-range, silver version of the truck was sighted at the Anheuser-Busch brewery in St. Louis, MO. Later during the same day, the long-range Semi was sighted parked at a Supercharger in St. Charles, which is about 24 miles away from Anheuser-Busch’s facility.

A week after the MO sighting, the same Tesla Semi was spotted at the Dallas, TX Service Center, showing up a day later on a private demo event for PepsiCo employees at Reunion Tower. As we noted in a previous report, one of the r/TeslaMotors subreddit’s members, Ryan O’Donnell, was able to attend the private event. While in the demo, Ryan was able to speak with a PepsiCo employee, who noted that the company’s 100 orders of the Tesla Semi were just a “drop in the bucket” for PepsiCo’s overall plans.

Just recently, we also reported on FedEx placing reservations for 20 Tesla Semis, which the courier delivery service will deploy for FedEx Freight, the company’s less-than-truckload (LTL) service.

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Overall, the Tesla Semi could very well disrupt the trucking industry the same way that the Model S disrupted the luxury sedan market. Equipped with four Model 3-derived electric motors, the Tesla Semi is capable of hauling 80,000 pounds of cargo, classifying it as a Class 8 vehicle. The instant torque provided by its multiple motors also enables it to go from 0-60 mph in just 20 seconds with a full load. Without any cargo, the Semi can hit 60 mph in as little as 5 seconds, which is close to muscle car territory.

Watch the Tesla Semi pair’s relaxed drive in the video below.

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Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Elon Musk

The FCC just said ‘No’ to SpaceX for now

SpaceX is fighting the FCC for spectrum that could put satellites inside every smartphone.

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SpaceX was dealt a new setback on April 23, 2006 by the Federal Communications Commission (FCC) after the U.S. government agency dismissed the company’s petition to access a Mobile Satellite Service spectrum that would allow direct-to-device (D2D) capabilities.

The FCC regulates communications by radio, television, wire, and cable, which also includes regulating D2D technology that lets your existing smartphone connect directly to a satellite orbiting Earth, the same way it would connect to a cell tower.

Elon Musk’s SpaceX has been building toward this through its Starlink Mobile service, formerly called Direct-to-Cell, in partnership with T-Mobile. The service officially launched on July 23, 2025, starting with messaging and expanding to broadband data in October of that year.

T-Mobile Starlink Pricing Announced – Early Adopters Get Exclusive Discount

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It’s worth noting that SpaceX is not alone in this race. AT&T and Verizon have their own satellite texting deals with AST SpaceMobile, while Verizon separately offers free satellite texting through Skylo on newer phones.

The regulatory foundation for all of this dates to March 14, 2024, when the FCC adopted the world’s first framework for what it called Supplemental Coverage from Space, allowing satellite operators to lease spectrum from terrestrial carriers and fill gaps in their coverage. On November 26, 2024, the FCC granted SpaceX the first-ever authorization under that framework, approving its partnership with T-Mobile to provide service in specific frequency bands. SpaceX then went further, completing a roughly $17 billion acquisition of wireless spectrum from EchoStar, which gave it the ability to negotiate with global carriers more independently.

Starlink’s EchoStar spectrum deal could bring 5G coverage anywhere

This recent ruling by the FCC blocked SpaceX from going further, protecting incumbent spectrum holders like Globalstar and Iridium. But the market momentum is already in motion. As Teslarati reported, SpaceX is targeting peak speeds of 150 Mbps per user for its next generation Direct-to-Cell service, compared to roughly 4 Mbps today, which would bring satellite connectivity close to standard carrier performance.

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With a reported IPO targeting a $1.75 trillion valuation on the horizon, each spectrum fight, carrier deal, and regulatory win or loss now carries weight beyond just connectivity. SpaceX is quietly becoming the infrastructure layer underneath the phones of millions of people, and the FCC’s next move will help determine how much further that reach extends.

FCC Satellite Rule Makings can be found here.

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Elon Musk

Elon Musk talks Tesla Roadster’s future

Elon Musk confirmed the Roadster as Tesla’s last manually driven car, with a debut coming soon.

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Tesla Roadster driving along sunset cliff (Credit: Grok)

During Tesla’s Q1 2026 earnings call on April 22, Elon Musk made a brief but notable comment about the long-awaited next generation Roadster while describing Tesla’s future vehicle lineup. “Long term, the only manually driven car will be the new Tesla Roadster,” he said. “Speaking of which, we may be able to debut that in a month or so. It requires a lot of testing and validation before we can actually have a demo and not have something go wrong with the demo.”

That single statement is the entire Roadster update from yesterday’s call, and while it represents another timeline shift, it comes as no surprise with Tesla heads-down-at-work on the mass rollout of its Robotaxi service across US cities, and the industrial scale production of the humanoid Optimus.

The fact that Musk specifically framed the Roadster as the last manually driven Tesla is significant on its own. As the rest of the lineup moves toward full autonomy, the Roadster becomes something rare in the Tesla-sphere by keeping the driver in control. Driving enthusiasts who buy a $200,000 supercar are not doing so to be passengers. They want the physical connection to the road, the feel of acceleration under their own input, and the experience of controlling something with that level of performance. FSD, however capable it becomes, removes that entirely. The Roadster signals that Tesla understands this distinction and is building a car specifically for the people who consider driving itself the point.

Tesla isn’t joking about building Optimus at an industrial scale: Here we go

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The specs for the Roadster Musk has teased over the years are genuinely unlike anything in production. The base model targets 0 to 60 mph in 1.9 seconds, a top speed above 250 mph, and up to 620 miles of range from a 200 kWh battery. The optional SpaceX package takes it further, rumored to add roughly ten cold gas thrusters operating at 10,000 psi, borrowed directly from Falcon 9 rocket technology. With thrusters, Musk has claimed 0 to 60 mph in as little as 1.1 seconds. In a 2021 Joe Rogan interview he went further, stating “I want it to hover. We got to figure out how to make it hover without killing people.” Tesla filed a patent for ground effect technology in August 2025, suggesting the hover concept has not been abandoned. The starting price remains $200,000, with the Founders Series requiring a $250,000 full deposit. Some reservation holders placed those deposits in 2017 and are approaching a full decade of waiting.

With production now targeted for 2027 or 2028 at the earliest, the Roadster remains Tesla’s most audacious promise and its longest-running delay. But if what Musk is testing lives up to even half of what he has described, the demo alone should be worth waiting for.

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Tesla isn’t joking about building Optimus at an industrial scale: Here we go

Tesla’s Optimus factory in Texas targets 10 million robots yearly, with 5.2 million square feet under construction.

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Tesla’s Q1 2026 Update Letter, released today, confirms that first generation Optimus production lines are now well underway at its Fremont, California factory, with a pilot line targeting one million robots per year to start. Of bigger note is a shared aerial image of a large piece of land adjacent to Gigafactory Texas, that Tesla has prominently labeled “Optimus factory site preparation.”

Permit documents show Tesla is seeking to add over 5.2 million square feet of new building space to the Giga Texas North Campus by the end of 2026, at an estimated construction investment of $5 billion to $10 billion. The longer term production target for that facility is 10 million Optimus units per year. Giga Texas already sits on 2,500 acres with over 10 million square feet of existing factory floor, and the North Campus expansion is being built to support multiple projects, including the dedicated Optimus factory, the Terafab chip fabrication facility (a joint Tesla/SpaceX/xAI venture), a Cybercab test track, road infrastructure, and supporting facilities.

Credit: TESLA

Texas makes strategic sense beyond the existing infrastructure. The state’s tax structure, lower labor costs relative to California, and the proximity to Tesla’s AI training cluster Cortex 1 and 2, both located at Giga Texas and now totaling over 230,000 H100 equivalent GPUs, means the Optimus software stack and the factory producing the hardware will share the same campus. Tesla’s Q1 report also confirmed completion of the AI5 chip tape out in April, the inference processor designed specifically to power Optimus units in the field.

As Teslarati reported, the Texas facility is intended to house Optimus V4 production at full scale. Musk told the World Economic Forum in January that Tesla plans to sell Optimus to the public by end of 2027 at a price between $20,000 and $30,000, stating, “I think everyone on earth is going to have one and want one.” He has previously pegged long term demand for general purpose humanoid robots at over 20 billion units globally, citing both consumer and industrial use cases.

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