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Mullen Automotive labeled ‘Another Fast Talking EV Hustle’ in new Hindenburg Research report
Hindenburg Research came out with a new report on Wednesday calling Mullen Automotive “another fast-talking EV hustle,” claiming the up-and-coming electric vehicle startup has “grand promises — and little to back them up.”
Founded in 2014, Mullen has been attempting to build competitive electric vehicles and develop new battery technology that would revolutionize the increasingly-saturated industry. The company’s stock has climbed around 316 percent, according to the report, which has been driven by “retail investor euphoria over bold claims of ground-breaking technology, near term production of its EV vans, and a major as-yet-unnamed Fortune 500 customer.”
A considerable chunk of that growth came recently as Mullen released an update on battery testing, which sent the company’s stock up 145 percent, the report states. “In reality, the “news” appears to be a rehash of testing the company had already announced in 2020,” Hindenburg wrote. The extensive report also questions Mullen’s research and development practices, which have not aligned with what the company has spent investing in developing its products. Hindenburg said Mullen only spent around $3 million in R&D last year, despite the company stating it is on track for commercialization of solid-state batteries within the next 18 to 24 months. Meanwhile, other companies and significant automakers have funneled billions into developing the tech, without much to show for it.
Other claims in the report state that the two electric cargo vans Mullen said it will manufacture are actually Chinese EVs rebranded with a company logo. “Import records show the company recently imported two vehicles from China, one of each model,” the report said.
Additionally, Mullen has major production hurdles to jump over, including EPA certifications and a need for employees.
Mullen shares (NASDAQ: MULN) dropped as much as 8.27 percent this morning after the report was published. Shares were down around 4.4 percent as of 12:51 PM EST. Mullen did not immediately respond to Teslarati’s inquiry for comment.
The automaker is currently developing its introductory EV, the Mullen Five. An all-electric crossover, Mullen estimates the range will be around 325 miles, with a max speed of 155 MPH and 0-60 in just 3.2 seconds.
Earlier this week, Mullen announced the promotion of former Tesla executive John Taylor to its Global Manufacturing and Strategic Planning Head. “John brings a wealth of experience in the EV manufacturing space. He plays a critical role in the ongoing setup and expansion of Mullen’s Advanced Manufacturing and Engineering Center (AMEC) in Tunica, Mississippi,” CEO David Michery said. “John’s international manufacturing experience will come into play as he strategizes and evaluates Mullen’s other domestic and international manufacturing opportunities.”
Hindenburg Research has released numerous short-seller reports in the past, including one with Nikola Motor that turned out to lead to the company’s eventual restructuring. Founder Trevor Milton stepped down, and was indicted on fraud charges late last year.
The full report against Mullen Automotive is available here.
Disclosure: Joey Klender is not a Mullen Shareholder.
I’d love to hear from you! If you have any comments, concerns, or questions, please email me at joey@teslarati.com. You can also reach me on Twitter @KlenderJoey, or if you have news tips, you can email us at tips@teslarati.com.
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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.
News
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.
News
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.
