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Porsche exec discusses Taycan battery size, winter package, and final design
Porsche continues to provide exciting new details about the Taycan, the company’s first all-electric vehicle that’s expected to rival the Tesla Model S. Just recently, the established carmaker issued a press release discussing the vehicle’s upcoming charging infrastructure in North America, which would enable the Taycan to travel from coast to coast. In a recent interview, the chief of Porsche’s Electric Car Initiative outlined some exciting new details about the electric sedan, including its battery pack size, as well as some of the vehicle’s notable features.
In a recent email to Taycan reservation holders (credit to Jim Roger Johansen for providing Teslarati with a copy of the message), Stefan Weckbach, one of the veteran company’s leads on the development of the Taycan, answered some frequently asked questions about the upcoming electric sedan.
Considering that Porsche is yet to reveal the production version of the Taycan, questions remain about the vehicle’s final design. Weckbach, for his part, noted that the production car’s appearance would be very similar to that of the Mission E sedan concept car, though the exec stated that it would be “more suited for practical use” and optimized for aerodynamics. As such, the production Taycan would utilize conventional doors instead of the Mission E sedan concept’s stunning suicide doors.
Being a sports sedan, the Taycan would not be equipped with a tow hitch. In his response to the inquiry, Weckbach explained that the “demand for hitches in the (sports sedan) segment is low.” The Porsche exec also provided some details about the Taycan’s Winter Package, which would include heated seats in both front and rear, a heated steering wheel, and a heat pump. The Porsche exec noted that the Winter Package would be available as an option.
That said, perhaps the most interesting piece of information from Weckbach’s brief, written Q&A, are some tidbits about the Taycan’s battery pack. Porsche has noted that the upcoming electric car’s lithium-ion battery pack would be liquid cooled, enabling impressive performance and acceleration figures. The exec also noted that the size of the Taycan’s battery would be around 90 kWh, placing it just below the Model S’ largest battery pack to date and putting it in the same range as the Jaguar I-PACE.
The Porsche Taycan is the first all-electric car from the established carmaker. True to the company’s spirit, the Taycan boasts impressive specs, from its 0-60 mph time of 3.5 seconds, its top speed of 155 mph, and its range of 310 miles per charge. Just like its iconic vehicles like the legendary Porsche 911, the carmaker notes that the Taycan would be at home at the racetrack being driven hard around corners and bends. As pointed out by a Porsche brand ambassador in an email to an auto journalist last month, the Taycan would be offered in three models — an entry-level version, a mid-range variant called the Taycan 4S, and a range-topping version dubbed the Taycan Turbo, which would likely cost over $130,000 before options.
The Porsche Taycan is expected to start production sometime this year at the company’s Zuffenhausen site.
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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.
