Rivian’s R1T electric pickup truck took to off-road and speed test proving grounds in Arizona to assess the vehicle’s suspension and performance capabilities ahead of next year’s planned production.
Rivian’s Director of Vehicle Dynamics, Max Koff, put R1T’s quad-motor system, with independent air suspension and hydraulic roll control functionality, to the test through a series of challenging and exhilarating off-road trails. The company’s all-electric pickup boasts a versatile air suspension that can adjust in height and provide clearance between eight inches and high as fourteen inches to optimize for range efficiency and off-road performance.
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- Credit: Rivian
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- (Credit: Rivian)
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- Credit: Rivian
The Arizona testing ground was the ultimate test for Rivian’s claims of an off-road adventure. With plenty of challenges, Rivian shared a video of the R1T being able to make its way up a steep grade of a rock-covered hill and maneuver through an equally challenging descent.
“What you might consider punishing it off-road, but we’re learning. We’re taking all that data in, and we’re constantly developing, making it better on-road and off-road,” Koff explained.
The R1T is more than a durable and robust truck that can handle harsh terrain. It is a high-performance automobile that is capable of 0-60 in just three seconds—powered by the four electric motors that offer 200 horsepower at each wheel and a 180 kWh battery pack that has been developed by Rivian’s team of battery engineers.
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- Credit: Rivian
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- Credit: Rivian
One of the biggest challenges for Rivian was to come up with a design that would incorporate a concentrated and potent battery pack into Rivian’s small, flexible, and compact skateboard chassis. Engineers indicated that the storage of the cells also brought upon other issues that included cooling the pack assembly in an efficient manner that allows for extended high-performance driving.
Rivian’s development of in-house battery packs allowed the company to “open up possibilities,” one engineer said. This idea enabled the possibility of the battery packs to learn the specific driving styles and charging patterns of its owner to increase the lifespan of the pack, CEO RJ Scaringe said.
It was essential to manufacture a battery pack that could last through the hottest, most-intense driving sessions, but could also maintain its integrity and range capabilities within cold winters. This idea became the main focus of Rivian’s battery team, which ultimately drove Koff’s off and on-road testing session to display impressive results.
The electric automotive market continues to grow, and pickup trucks are becoming a focus of many battery-electric manufacturers whose idea is to create a powerful, high-performance machine that is capable of handling the most strenuous tasks thrown at it. Tesla’s Cybertruck, Ford’s electric F-150, Rivian’s R1T, Lordstown’s Endurance, and other battery-powered pickups will attempt to push their way into a market that is concentrated with petrol-powered machines.
Rivian’s R1T is expected to begin production in 2021.
-->Watch the Rivian R1T undergo off-road a speed performance testing below.
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Elon Musk makes a key Tesla Optimus detail official
“Since we are naming the singular, we will also name the plural, so Optimi it is,” Musk wrote on X.
Tesla CEO Elon Musk just made a key detail about Optimus official. In a post on X, the CEO clarified some key wording about Optimus, which should help the media and the public become more familiar with the humanoid robot.
Elon Musk makes Optimus’ plural term official
Elon Musk posted a number of Optimus-related posts on X this weekend. On Saturday, he stated that Optimus would be the Von Neumann probe, a machine that could eventually be capable of replicating itself. This capability, it seems, would be the key to Tesla achieving Elon Musk’s ambitious Optimus production targets.
Amidst the conversations about Optimus on X, a user of the social media platform asked the CEO what the plural term for the humanoid robot will be. As per Musk, Tesla will be setting the plural term for Optimus since the company also decided on the robot’s singular term. “Since we are naming the singular, we will also name the plural, so Optimi it is,” Musk wrote in his reply on X.
This makes it official. For media outlets such as Teslarati, numerous Optimus bots are now called Optimi. It rolls off the tongue pretty well, too.
Optimi will be a common sight worldwide
While Musk’s comment may seem pretty mundane to some, it is actually very important. Optimus is intended to be Tesla’s highest volume product, with the CEO estimating that the humanoid robot could eventually see annual production rates in the hundreds of millions, perhaps even more. Since Optimi will be a very common sight worldwide, it is good that people can now get used to terms describing the humanoid robot.
-->During the Tesla 2025 Annual Shareholder Meeting, Musk stated that the humanoid robot will see “the fastest production ramp of any product of any large complex manufactured product ever,” starting with a one-million-Optimi-per-year production line at the Fremont Factory. Giga Texas would get an even bigger Optimus production line, which should be capable of producing tens of millions of Optimi per year.
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Tesla is improving Giga Berlin’s free “Giga Train” service for employees
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
Tesla will expand its factory shuttle service in Germany beginning January 4, adding direct rail trips from Berlin Ostbahnhof to Giga Berlin-Brandenburg in Grünheide.
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
New shuttle route
As noted in a report from rbb24, the updated service, which will start January 4, will run between the Berlin Ostbahnhof East Station and the Erkner Station at the Gigafactory Berlin complex. Tesla stated that the timetable mirrors shift changes for the facility’s employees, and similar to before, the service will be completely free. The train will offer six direct trips per day as well.
“The service includes six daily trips, which also cover our shift times. The trains will run between Berlin Ostbahnhof (with a stop at Ostkreuz) and Erkner station to the Gigafactory,” Tesla Germany stated.
Even with construction continuing at Fangschleuse and Köpenick stations, the company said the route has been optimized to maintain a predictable 35-minute travel time. The update follows earlier phases of Tesla’s “Giga Train” program, which initially connected Erkner to the factory grounds before expanding to Berlin-Lichtenberg.
-->Tesla pushes for majority rail commuting
Tesla began production at Grünheide in March 2022, and the factory’s workforce has since grown to around 11,500 employees, with an estimated 60% commuting from Berlin. The facility produces the Model Y, Tesla’s best-selling vehicle, for both Germany and other territories.
The company has repeatedly emphasized its goal of having more than half its staff use public transportation rather than cars, positioning the shuttle as a key part of that initiative. In keeping with the factory’s sustainability focus, Tesla continues to allow even non-employees to ride the shuttle free of charge, making it a broader mobility option for the area.
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Tesla Model 3 and Model Y dominate China’s real-world efficiency tests
The Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km.
Tesla’s Model 3 and Model Y once again led the field in a new real-world energy-consumption test conducted by China’s Autohome, outperforming numerous rival electric vehicles in controlled conditions.
The results, which placed both Teslas in the top two spots, prompted Xiaomi CEO Lei Jun to acknowledge Tesla’s efficiency advantage while noting that his company’s vehicles will continue refining its own models to close the gap.
Tesla secures top efficiency results
Autohome’s evaluation placed all vehicles under identical conditions, such as a full 375-kg load, cabin temperature fixed at 24°C on automatic climate control, and a steady cruising speed of 120 km/h. In this environment, the Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km, as noted in a Sina News report.
These figures positioned Tesla’s vehicles firmly at the top of the ranking and highlighted their continued leadership in long-range efficiency. The test also highlighted how drivetrain optimization, software management, and aerodynamic profiles remain key differentiators in high-speed, cold-weather scenarios where many electric cars struggle to maintain low consumption.
Xiaomi’s Lei Jun pledges to continue learning from Tesla
Following the results, Xiaomi CEO Lei Jun noted that the Xiaomi SU7 actually performed well overall but naturally consumed more energy due to its larger C-segment footprint and higher specification. He reiterated that factors such as size and weight contributed to the difference in real-world consumption compared to Tesla. Still, the executive noted that Xiaomi will continue to learn from the veteran EV maker.
“The Xiaomi SU7’s energy consumption performance is also very good; you can take a closer look. The fact that its test results are weaker than Tesla’s is partly due to objective reasons: the Xiaomi SU7 is a C-segment car, larger and with higher specifications, making it heavier and naturally increasing energy consumption. Of course, we will continue to learn from Tesla and further optimize its energy consumption performance!” Lei Jun wrote in a post on Weibo.
-->Lei Jun has repeatedly described Tesla as the global benchmark for EV efficiency, previously stating that Xiaomi may require three to five years to match its leadership. He has also been very supportive of FSD, even testing the system in the United States.
Elon Musk makes a key Tesla Optimus detail official
Tesla is improving Giga Berlin’s free “Giga Train” service for employees
