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Former Tesla VP of Engineering joins Electric Supercar company Rimac

The Rimac C_Two (Credit: Rimac)

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Croatian car manufacturer Rimac Automobili has officially appointed former Vice President of Engineering at Tesla Chris Porritt to the role of Chief Technology Officer.

Porritt has career experience through three different decades and has held numerous roles with other luxury automakers. After a 16 year tenure as Chief Engineer at Aston Martin where he held a significant role in developing the One-77 hypercar and the V12 Vantage Zagato.

In 2013, Porritt moved from Aston Martin’s base in the United Kingdom to Silicon Valley to work for an up and coming automaker (at the time) called Tesla. He took on the role of VP of Vehicle Engineering at the electric automaker. One of Porritt’s main projects while serving for Tesla was combating range loss while driving the Model S in colder climates. Still, he also contributed to internal capabilities like crash testing and the installment vehicle assessment facilities.

He left Tesla to work for Apple in January 2016, where his LinkedIn account states he was apart of the Special Projects Group.

Now, Porritt joins Rimac to help develop the company’s fleet of supercars and their internal tech.

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“The opportunity to join Rimac Automobili is an engineer’s dream,” Porritt said.

Mate Rimac, the founder of the automaker, is excited about Porritt’s presence on the team. “I had concerns that people with great industry experience would not be a fit for our culture and company spirit. However, as a car enthusiast through and through, who gets the “hands dirty” himself, Chris fit right in from the first moment. We share the same mindset: we want to develop cars that raise the bar, are fun and great quality.”

Rimac founder Mate Rimac and Chris Porritt. (Credit: Rimac)

According to a company press release, Rimac is focused heavily on the launch of its latest supercar, which is code-named C_Two. 150 units of the car will be hand-built on a recently installed production line in Croatia starting next year. For now, the company continues to develop and design the parts of the car ahead of the initial production push in 2021.

“Since nearly every key component is designed and built in-house by Rimac, this gives us freedom to create something that’s unlike anything else that has been done before in the Hypercar world,” Porritt added.

In terms of the C_Two, Porritt’s expertise from his previous experience at Aston Martin and Tesla should be invaluable to the Rimac team. Additionally, his work at Apple could translate to increased effectiveness for Rimac’s in-vehicle software infrastructure.

The Rimac C_Two (Credit: Rimac)

“What the team has already achieved with the development of the C_Two thus far is phenomenal, and I look forward to guide the engineering development of future Rimac products that will push the envelope of performance,” he said.

The C_Two is nearly sold out despite its $2 million price tag. It will end up being a direct rival to the next-gen Tesla Roadster by boasting a 0-60 MPH time of just 1.85 seconds, powered by 1,914 horsepower generated by four liquid-cooled permanent magnet synchronous electric motors that are placed at each wheel.

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Joey has been a journalist covering electric mobility at TESLARATI since August 2019. In his spare time, Joey is playing golf, watching MMA, or cheering on any of his favorite sports teams, including the Baltimore Ravens and Orioles, Miami Heat, Washington Capitals, and Penn State Nittany Lions. You can get in touch with joey at joey@teslarati.com. He is also on X @KlenderJoey. If you're looking for great Tesla accessories, check out shop.teslarati.com

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Tesla Board member and Airbnb co-founder loads up on TSLA ahead of robotaxi launch

Tesla CEO Elon Musk gave a nod of appreciation for the Tesla Board member’s purchase.

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(Credit: Tesla)

Tesla Board member and Airbnb Co-Founder Joe Gebbia has loaded up on TSLA stock (NASDAQ:TSLA). The Board member’s purchase comes just over a month before Tesla is expected to launch an initial robotaxi service in Austin, Texas.

Tesla CEO Elon Musk gave a nod of appreciation for the Tesla Board member in a post on social media.

The TSLA Purchase

As could be seen in a Form 4 submitted to the United States Securities and Exchange Commission (SEC) on Monday, Gebbia purchased about $1.02 million worth of TSLA stock. This was comprised of 4,000 TSLA shares at an average price of $256.308 per share.

Interestingly enough, Gebbia’s purchase represents the first time an insider has purchased TSLA stock in about five years. CEO Elon Musk, in response to a post on social media platform X about the Tesla Board member’s TSLA purchase, gave a nod of appreciation for Gebbia. “Joe rocks,” Musk wrote in his post on X.

Gebbia has served on Tesla’s Board as an independent director since 2022, and he is also a known friend of Elon Musk. He even joined the Trump Administration’s Department of Government Efficiency (DOGE) to help the government optimize its processes.

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Just a Few Weeks Before Robotaxi

The timing of Gebbia’s TSLA stock purchase is quite interesting as the company is expected to launch a dedicated roboatxi service this June in Austin. A recent report from Insider, citing sources reportedly familiar with the matter, claimed that Tesla currently has 300 test operators driving robotaxis around Austin city streets. The publication’s sources also noted that Tesla has an internal deadline of June 1 for the robotaxi service’s rollout, but even a launch near the end of the month would be impressive.

During the Q1 2025 earnings call, Elon Musk explained that the robotaxi service that would be launched in June will feature autonomous rides in Model Y units. He also noted that the robotaxi service would see an expansion to other cities by the end of 2025. “The Teslas that will be fully autonomous in June in Austin are probably Model Ys. So, that is currently on track to be able to do paid rides fully autonomously in Austin in June and then to be in many other cities in the US by the end of this year,” Musk stated. 

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Stellantis unveils solid-state battery for EVs

Stellantis validated solid state battery cells for EVs: ultra-dense, fast-charging, and AI-optimized. Launching demo fleet by 2026.

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(Credit: Stellantis)

Stellantis N.V. and Factorial Energy have validated Factorial’s automotive-sized FEST® solid-state battery cells, a major milestone for next-generation electric vehicle (EV) batteries. The breakthrough positions Stellantis and Factorial to advance EV performance with lighter, more efficient batteries.

“Reaching this level of performance reflects the strengths of our collaboration with Factorial.

“This breakthrough puts us at the forefront of the solid-state revolution, but we are not stopping there. We continue working together to push the boundaries and deliver even more advanced solutions, bringing us closer to lighter, more efficient batteries that reduce costs for our customers,” said Ned Curic, Stellanti’s Chief Engineering and Technology Officer.

The 77Ah FEST® cells achieved an energy density of 375Wh/kg, supporting over 600 cycles toward automotive qualification. Unlike lithium-ion batteries, these solid-state cells charge from 15% to over 90% in 18 minutes at room temperature and deliver high power with discharge rates up to 4C. Factorial’s AI-driven electrolyte formulation enables performance in temperatures from -30°C to 45°C (-22°F to 113°F), overcoming previous solid-state limitations.

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“Battery development is about compromise. While optimizing one feature is simple, balancing high energy density, cycle life, fast charging, and safety in an automotive-sized battery with OEM validation is a breakthrough,” said Siyu Huang, CEO of Factorial Energy. “This achievement with Stellantis is bringing next-generation battery technology from research to reality.”

The collaboration optimizes battery pack design for reduced weight and improved efficiency, enhancing vehicle range and affordability. Stellantis invested $75 million in Factorial in 2021 and plans to integrate these batteries into a demonstration fleet by 2026. This fleet will validate the technology’s real-world performance, a critical step toward commercialization.

The milestone aligns with Stellantis’ push for sustainable EV solutions, leveraging Factorial’s disruptive technology to meet the rising demand for high-performance batteries. As the companies refine pack architecture, the validated cells promise faster charging and greater efficiency, potentially reshaping the EV market. With the demonstration fleet on the horizon, Stellantis and Factorial are poised to lead the solid-state battery push, delivering cost-effective, high-range EVs to consumers.

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Tesla China vehicle registrations rise 51% in April’s fourth week

In the week ending April 27, Tesla China saw 10,300 new vehicle registrations.

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Credit: Tesla China

Tesla China’s new vehicle registrations saw a notable rise in the week of April 21-27, 2025. Over the week, the electric vehicle maker’s registrations saw an impressive 51% week-over-week rise, suggesting that domestic vehicle deliveries are on the rise once more. 

Tesla China Results

In the week ending April 27, Tesla China saw 10,300 new vehicle registrations. This represents a notable rise from the company’s registration numbers in the past weeks of April. For context, Tesla China saw 3,600 registrations in the week ending April 6, 5,400 registrations in the week ending April 13, and 6,780 registrations in the week ending April 20, 2025.

Considering that April is the first month of the second quarter, expectations were high that Tesla China was allocating Giga Shanghai’s output for vehicle exports. With 10,300 registrations in the week ending April 27, however, it would appear that the company’s domestic deliveries are picking up once more.

Tesla China does not report its weekly sales figures, though a general idea of the company’s overall perforce in the domestic auto sector can be inferred through new vehicle registrations. Fortunately, these registrations are closely tracked by industry watchers, as well as some local automakers like Li Auto.

Tesla Model 3 and Model Y in Focus

Tesla China produces the Model Y and Model 3 in Giga Shanghai. Both vehicles are also exported from China to foreign territories. As per industry watchers, it would appear that both the Model 3 and Model Y saw an increase in registrations in the week ending April 27.

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The Model 3, for one, appears to have seen 3,200 registrations in the week ending April 27, a 14% increase from the 2,800 that were registered in the week ending April 20. For context, Tesla China saw just 1,500 new Model 3 registrations in the week ending April 13 and 1,040 registrations in the week ending April 6.

The Model Y, on the other hand, saw 7,100 registrations in the week ending April 27. That’s a 77.5% increase from the 4,000 that were registered in the week ending April 20. Tesla also saw 3,900 registrations in the week ending April 13, and 2,540 registrations in the week ending April 6, 2025.

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