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Cadillac implements new material to make Lyriq 80% quieter

The Cadillac LYRIQ, which has been dubbed “crypt-quiet” and “the quietest car I can remember driving” by the press, sports an electric AC compressor mounting bracket made of Vydyne AVS, which effectively helps damp that component’s vibrations at the source while also providing structural support. Credit: APM

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A new material used in the Cadillac Lyriq and made by Ascend Performance Materials is designed to make electric vehicles 80% quieter.

Noise Vibration and Harshness (NVH) material has long been used in the automotive industry to limit the factors that make up its name; noise, vibration, and harshness. Automakers can make their vehicles significantly quieter and more comfortable by targeting certain vibration frequencies. And with a new material designed specifically for electric cars, the Cadillac Lyriq can become up to 80% quieter.

The unique material called Vydyne AVS is made by Ascend Performance Materials in Houston and is already being used in the Cadillac Lyriq. According to the company’s press release, by targeting specific frequencies given off by EV motors and compressors, Vydyne AVS can reduce cabin sound pressure by 80%.

As a result of this material, drivers limit motor and road noise while not sacrificing safety; drivers can still hear the vehicles and emergency vehicles around them. As the company notes in its release, this creates a “crypt-like” quietness in the cabin while driving, and this has come out in multiple reviews of the now hotly demanded Cadillac Lyriq.

The other material the company has announced today is a fire safety material designed to keep passengers safe in the case of a battery fire. While battery fires are uncommon in electric vehicles, being prepared for the worst-case scenario can be the difference between life and death. Starflom X-Protect is a nylon-based flame retardant that can prevent battery fires from ever affecting the internal occupants of vehicles.

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In a video posted by the company, Starflam X-Protect is shown to be able to withstand 1,000 decrease celsius for 15 minutes before the test is halted. In contrast, other flame retardants and simple aluminum plating melted far before.

These great new materials can make EVs exponentially safer and quieter. Considering how much safer and quieter EVs are compared to gas vehicles, drivers will get an exponentially better experience in the coming years. And as electric motor and battery technology improves, these materials will eventually help drivers and passengers feel just as safe and calm as they are in their homes.

What do you think of the article? Do you have any comments, questions, or concerns? Shoot me an email at william@teslarati.com. You can also reach me on Twitter @WilliamWritin. If you have news tips, email us at tips@teslarati.com!

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Will is an auto enthusiast, a gear head, and an EV enthusiast above all. From racing, to industry data, to the most advanced EV tech on earth, he now covers it at Teslarati.

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Tesla Model Y dominated China’s NEV sales in December 2025

As per sales data from China, the all-electric crossover finished first among the country’s best-selling EVs and plug-in hybrids.

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Credit: Grok Imagine

The Tesla Model Y ranked as China’s top-selling new energy vehicle in December, leading an intensely competitive market packed with strong domestic brands. 

As per sales data from China, the all-electric crossover finished first among the country’s best-selling EVs and plug-in hybrids. The Model 3 also placed within the country’s top ten vehicles.

Model Y leads China’s NEV rankings

The graphic, shared on X and sourced from Chinese auto industry data aggregator Yiche, listed the top 20 best-selling new energy vehicles in China for December. Tesla’s Model Y claimed the No. 1 position with roughly 65,874 units sold, finishing well ahead of a field dominated by domestic manufacturers such as BYD, SAIC-GM-Wuling, and Xiaomi.

The chart also showed strong performances from other high-volume models, including BYD’s Qin Plus, which sold 46,837 units during the month. Tesla’s Model 3 ranked eighth overall, with just under 28,000 units sold, placing it ahead of numerous locally produced competitors despite its rather premium price.

Tesla China’s strong December

Tesla China had a stellar December 2025. During the month, Tesla sold 97,171 vehicles wholesale in China, as per data from the China Passenger Car Association (CPCA). The result marked Tesla China’s second-highest monthly total on record, trailing only November 2022’s peak of 100,291 units.

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December’s wholesale figure represented a 3.63% increase from the same month a year earlier and a 12.08% jump from November. Industry watchers have suggested that part of the surge was driven by Tesla pulling deliveries forward to allow customers to benefit from more favorable purchase tax policies before year-end. 

Despite this, December’s results suggest that Tesla’s Model Y and Model 3 remain highly competitive offerings in China, which is extremely impressive considering the competition from domestic players and their still premium price.

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Elon Musk

Elon Musk’s net worth is nearing $800 billion, and it’s no small part due to xAI

A newly confirmed $20 billion xAI funding round valued the business at $250 billion, adding an estimated $62 billion to Musk’s fortune.

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Gage Skidmore, CC BY-SA 4.0 , via Wikimedia Commons

Elon Musk moved within reach of an unprecedented $800 billion net worth after private investors sharply increased the valuation of xAI Holdings, his artificial intelligence and social media company. 

A newly confirmed $20 billion funding round valued the business at $250 billion, adding an estimated $62 billion to Musk’s fortune and widening his lead as the world’s wealthiest individual.

xAI’s valuation jump

Forbes confirmed that xAI Holdings was valued at $250 billion following its $20 billion funding round. That’s more than double the $113 billion valuation Musk cited when he merged his AI startup xAI with social media platform X last year. Musk owned roughly 49% of the combined company, which Forbes estimated was worth about $122 billion after the deal closed.

xAI’s recent valuation increase pushed Musk’s total net worth to approximately $780 billion, as per Forbes’ Real-Time Billionaires List. The jump represented one of the single largest wealth gains ever recorded in a private funding round.

Interestingly enough, xAI’s funding round also boosted the AI startup’s other billionaire investors. Saudi investor Prince Alwaleed Bin Talal Alsaud held an estimated 1.6% stake in xAI worth about $4 billion, so the recent funding round boosted his net worth to $19.4 billion. Twitter co-founder Jack Dorsey and Oracle co-founder Larry Ellison each owned roughly 0.8% stakes that are now valued at about $2.1 billion, increasing their net worths to $6 billion and $241 billion, respectively.

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The backbone of Musk’s net worth

Despite xAI’s rapid rise, Musk’s net worth is still primarily anchored by SpaceX and Tesla. SpaceX represents Musk’s single most valuable asset, with his 42% stake in the private space company estimated at roughly $336 billion. 

Tesla ranks second among Musk’s holdings, as he owns about 12% of the EV maker’s common stock, which is worth approximately $307 billion.

Over the past year, Musk crossed a series of historic milestones, becoming the first person ever worth $500 billion, $600 billion, and $700 billion. He also widened his lead over the world’s second-richest individual, Larry Page, by more than $500 billion.

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Tesla Cybercab sighting confirms one highly requested feature

The feature will likely allow the Cybercab to continue operating even in conditions when its cameras could be covered with dust, mud, or road grime.

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Credit: @DennisCW_/X

A recent sighting of Tesla’s Cybercab prototype in Chicago appears to confirm a long-requested feature for the autonomous two-seater. 

The feature will likely allow the Cybercab to continue operating even in conditions when its cameras could be covered with dust, mud, or road grime.

The Cybercab’s camera washer

The Cybercab prototype in question was sighted in Chicago, and its image was shared widely on social media. While the autonomous two-seater itself was visibly dirty, its rear camera area stood out as noticeably cleaner than the rest of the car. Traces of water were also visible on the trunk. This suggested that the Cybercab is equipped with a rear camera washer.

As noted by Model Y owner and industry watcher Sawyer Merritt, a rear camera washer is a feature many Tesla owners have requested for years, particularly in snowy or wet regions where camera obstruction can affect visibility and the performance of systems like Full Self-Driving (FSD).

While only the rear camera washer was clearly visible, the sighting raises the possibility that Tesla may equip the Cybercab’s other external cameras with similar cleaning systems. Given the vehicle’s fully autonomous design, redundant visibility safeguards would be a logical inclusion.

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The Cybercab in Tesla’s autonomous world

The Cybercab is Tesla’s first purpose-built autonomous ride-hailing vehicle, and it is expected to enter production later this year. The vehicle was unveiled in October 2024 at the “We, Robot” event in Los Angeles, and it is expected to be a major growth driver for Tesla as it continues its transition toward an AI- and robotics-focused company. The Cybercab will not include a steering wheel or pedals and is intended to carry one or two passengers per trip, a decision Tesla says reflects real-world ride-hailing usage data.

The Cybercab is also expected to feature in-vehicle entertainment through its center touchscreen, wireless charging, and other rider-focused amenities. Musk has also hinted that the vehicle includes far more innovation than is immediately apparent, stating on X that “there is so much to this car that is not obvious on the surface.”

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