News
Tesla Model X cited as “most significant vehicle”, by growth contribution to record 2016 PEV sales
Electric and plug-in hybrid car sales established new sales records in 2016 with the Tesla Model X earning the title of “most significant vehicle” according to EV Volumes. The industry tracking site cites the Model X for its contribution to the growth of plug-in car sales in the US this past year.
EV Volumes defines any car with a plug as a plug-in, which may cause some Tesla fans heartburn. The site does acknowledge that plug-in hybrids are probably a stop-gap solution until there are more pure electric cars with at least 200 miles of range available to American consumers.
“The volume increase in 2016 can be attributed to Tesla (+95 % for S & X combined), the new GM Volt (+61 %), Ford Fusion (+63 %) and a number of newcomers, mostly in the Plug-in Hybrid category.” indicates the published report. “By its growth contribution, the Tesla Model X must be regarded the most significant vehicle this year.”
The Tesla Model S was the overall sales leader for the year with 28,821 units sold to US customers, a 22% increase over 2015. The Model X finished the year with 17,629 US sales, good enough for 3rd place overall. The second generation Chevy Volt claimed 2nd place with 24,739 cars delivered to customers in the US, a 61% increase.
California claimed nearly 50% of all plug-in sales with the other 9 states that adhere to the California zero emissions standards accounting for another 13%. Combined, all ten states accounted for nearly 62% of all US plug-in sales. In the conventional car market, those states make up about 28% of the US new car market.
Other cars with plugs that sold more than 10,000 units in the US in 2016 include the Ford Fusion Energi plug-in hybrid, which saw its sales grow 63% last year to almost equal the Tesla Model X in total sales. The Fusion Energi now accounts for about 10% of all Fusion sales, despite the fact that Ford CEO Mark Fields insists that nobody wants to buy electric cars.
Sales of the Fusion Energi took off midyear after Ford began to advertise it as the longest range plug-in hybrid available. That claim is technically accurate — the Fusion Energi can travel more than 600 miles on a tank of fuel. But it is misleading in that the car only has 22 miles of range on battery power alone, which is only fair to middling for a plug-in hybrid these days.
To give the Fusion Hybrid more range, Ford simply increased the size of the gas tank. All of which suggests that the buying public is still woefully uninformed about cars with plugs, just as Elon Musk always claims when he talks about what a poor job car companies and automobile dealers do marketing electric cars.
The last car to sell more than 10,000 units last year is the venerable Nissan LEAF. Although Nissan promises an all new second generation LEAF with 200 miles or more of range sometime before the end of 2019, the current car is hopelessly out of date. It is essentially the same as it was when it first went on sale at the end of 2010. Still, the LEAF soldiered on to sell just over 14,000 cars in the US last year.

2016 Plug-in car sales in the US. Source: EV Volumes
In all, more than 156,000 cars with plugs were sold in the US in 2016. EV Volumes predicts that number will climb to 250,000 or more in 2017, assuming at least 50,000 Tesla Model 3 sedans are included. Whether the Model 3 makes it to market in significant numbers is one of the biggest stories industry watchers will be following this year.
News
Tesla confirms that it finally solved its 4680 battery’s dry cathode process
The suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Tesla has confirmed that it is now producing both the anode and cathode of its 4680 battery cells using a dry-electrode process, marking a key breakthrough in a technology the company has been working to industrialize for years.
The update, disclosed in Tesla’s Q4 and FY 2025 update letter, suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Dry cathode 4680 cells
In its Q4 and FY 2025 update letter, Tesla stated that it is now producing 4680 cells whose anode and cathode were produced during the dry electrode process. The confirmation addresses long-standing questions around whether Tesla could bring its dry cathode process into sustained production.
The disclosure was highlighted on X by Bonne Eggleston, Tesla’s Vice President of 4680 batteries, who wrote that “both electrodes use our dry process.”
Tesla first introduced the dry-electrode concept during its Battery Day presentation in 2020, pitching it as a way to simplify production, reduce factory footprint, lower costs, and improve energy density. While Tesla has been producing 4680 cells for some time, the company had previously relied on more conventional approaches for parts of the process, leading to questions about whether a full dry-electrode process could even be achieved.
4680 packs for Model Y
Tesla also revealed in its Q4 and FY 2025 Update Letter that it has begun producing battery packs for certain Model Y vehicles using its in-house 4680 cells. As per Tesla:
“We have begun to produce battery packs for certain Model Ys with our 4680 cells, unlocking an additional vector of supply to help navigate increasingly complex supply chain challenges caused by trade barriers and tariff risks.”
The timing is notable. With Tesla preparing to wind down Model S and Model X production, the Model Y and Model 3 are expected to account for an even larger share of the company’s vehicle output. Ensuring that the Model Y can be equipped with domestically produced 4680 battery packs gives Tesla greater flexibility to maintain production volumes in the United States, even as global battery supply chains face increasing complexity.
Elon Musk
Tesla Giga Texas to feature massive Optimus V4 production line
This suggests that while the first Optimus line will be set up in the Fremont Factory, the real ramp of Optimus’ production will happen in Giga Texas.
Tesla will build Optimus 4 in Giga Texas, and its production line will be massive. This was, at least, as per recent comments by CEO Elon Musk on social media platform X.
Optimus 4 production
In response to a post on X which expressed surprise that Optimus will be produced in California, Musk stated that “Optimus 4 will be built in Texas at much higher volume.” This suggests that while the first Optimus line will be set up in the Fremont Factory, and while the line itself will be capable of producing 1 million humanoid robots per year, the real ramp of Optimus’ production will happen in Giga Texas.
This was not the first time that Elon Musk shared his plans for Optimus’ production at Gigafactory Texas. During the 2025 Annual Shareholder Meeting, he stated that Giga Texas’ Optimus line will produce 10 million units of the humanoid robot per year. He did not, however, state at the time that Giga Texas would produce Optimus V4.
“So we’re going to launch on the fastest production ramp of any product of any large complex manufactured product ever, starting with building a one-million-unit production line in Fremont. And that’s Line one. And then a ten million unit per year production line here,” Musk stated.
How big Optimus could become
During Tesla’s Q4 and FY 2025 earnings call, Musk offered additional context on the potential of Optimus. While he stated that the ramp of Optimus’ production will be deliberate at first, the humanoid robot itself will have the potential to change the world.
“Optimus really will be a general-purpose robot that can learn by observing human behavior. You can demonstrate a task or verbally describe a task or show it a task. Even show it a video, it will be able to do that task. It’s going to be a very capable robot. I think long-term Optimus will have a very significant impact on the US GDP.
“It will actually move the needle on US GDP significantly. In conclusion, there are still many who doubt our ambitions for creating amazing abundance. We are confident it can be done, and we are making the right moves technologically to ensure that it does. Tesla, Inc. has never been a company to shy away from solving the hardest problems,” Musk stated.
Elon Musk
Rumored SpaceX-xAI merger gets apparent confirmation from Elon Musk
The comment follows reports that the rocket maker is weighing a transaction that could further consolidate Musk’s space and AI ventures.
Elon Musk appeared to confirm reports that SpaceX is exploring a potential merger with artificial intelligence startup xAI by responding positively to a post about the reported transaction on X.
Musk’s comment follows reports that the rocket maker is weighing a transaction that could further consolidate his space and AI ventures.
SpaceX xAI merger
As per a recent Reuters report, SpaceX has held discussions about merging with xAI, with the proposed structure potentially involving an exchange of xAI shares for SpaceX stock. The value, structure, and timing of any deal have not been finalized, and no agreement has been signed.
Musk appeared to acknowledge the report in a brief reply on X, responding “Yeah” to a post that described SpaceX as a future “Dyson Swarm company.” The comment references a Dyson Swarm, a sci-fi megastructure concept that consists of a massive network of satellites or structures that orbit a celestial body to harness its energy.
Reuters noted that two entities were formed in Nevada on January 21 to facilitate a potential transaction for the possible SpaceX-xAI merger. The discussions remain ongoing, and a transaction is not yet guaranteed, however.
AI and space infrastructure
A potential merger with xAI would align with Musk’s stated strategy of integrating artificial intelligence development with space-based systems. Musk has previously said that space-based infrastructure could support large-scale computing by leveraging continuous solar energy, an approach he has framed as economically scalable over time.
xAI already has operational ties to Musk’s other companies. The startup develops Grok, a large language model that holds a U.S. Department of Defense contract valued at up to $200 million. AI also plays a central role in SpaceX’s Starlink and Starshield satellite programs, which rely on automation and machine learning for network management and national security applications.
Musk has previously consolidated his businesses through share-based transactions, including Tesla’s acquisition of SolarCity in 2016 and xAI’s acquisition of X last year. Bloomberg has also claimed that Musk is considering a merger between SpaceX and Tesla in the future.
