Tesla has now reportedly rebuilt parts of their in-car audio player using HTML, Javascript and CSS, but what exactly does that mean? Could this change mean more music streaming services coming down the pipeline? If so, we may see Amazon Music, Pandora, and other audio streaming services added to Tesla’s vehicles in an upcoming software update.
Tesla launched Apple Music integration in their vehicles with the 2022 holiday update and according to Tesla hacker Greentheonly, parts of the music player have been rebuilt using web technologies.
Apple Music appears to be the only music service utilizing the new player at this moment, but it appears that Tesla is transitioning Spotify to their web-based player as well. The HTML-based audio player interface is almost identical to the native audio player in terms of design and behavior except for some small design changes.
While Apple Music is the only audio service leveraging Chromium for its interface, we believe Tesla will move all their music services to leverage this new player.
Why Use a HTML Player?
So the question is why move to an HTML-based player when Tesla already has a working audio player and there are downsides to web-based apps, such as reduced performance?
The answer is development time and ease of updating. While web apps aren't a good choice for intensive tasks, a simple audio player could be.
Developing web software is usually much quicker and easier when compared to developing in a native language such as C or C++. The user interface is quicker to build and changes can also be implemented faster.
Since most streaming services like YouTube Music, Amazon Music, Pandora, SiriusXM and many others already offer web-based players, adapting these to work in Tesla's web player is a much easier process than porting the music service to work in another language. The APIs, streaming protocols and all the details needed are already available in these web apps and Tesla just needs to adapt the application to work with their user interface.
Web applications also have the advantage of downloading new data when a user connects, so it’s much easier to roll out new features, updates and bug fixes. A web-based solution doesn’t require the end user to download a software update either, so Tesla can fix any issues on the fly.
Video Streaming
When Tesla rolled out their video streaming services in Tesla Theater, they took the web route and loaded the streaming service’s website in a Chromeless browser, creating almost zero development for the Tesla team. They leveraged what each streaming service already provides on the web and made it available in the car.
For audio, it's a similar concept, except Tesla wants to provide a consistent user interface regardless if you're listening to TuneIn, SiriusXM or Spotify. To do this Tesla still needs an additional layer that connects the audio controls to their UI, but the effort required is greatly reduced.
This change to leveraging the vehicle's browser to render more parts of the Tesla interface could be the reason why we've seen so many performance improvements to Tesla's Chromium-based browser.
New Music Services
With this upgrade and transition already taking place, I'd be surprised if we didn't start to see the addition of many music streaming services integrated with Tesla’s vehicles in the near future.
This could mean that we may see additional music services such as YouTube Music, Pandora, Amazon Music, and even a streaming version of SiriusXM in the near future.
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Tesla’s Cybertruck has officially earned a 5-Star Safety Rating from the NHTSA—an impressive achievement given the vehicle’s design. The achievement demonstrates Tesla’s engineering prowess. As one engineer points out, it wasn’t an easy feat.
Interestingly, the NHTSA only recently disclosed the results, despite the crash tests being completed a while ago. According to Lars Moravy, Tesla’s VP of Vehicle Engineering, the team had been aware of the 5-star rating for quite some time. While the reason for the delay remains unclear, now that the results are public, Tesla’s engineers can finally share how they achieved the rating.
Crumple Zones
Wes Morril, the Cybertruck’s Lead Engineer, wrote about the crash test video on X recently, addressing the claims that the Cybertruck doesn’t have a crumple zone. He also posted a side-by-side video (below) of the engineering analysis and the crash test itself.
Engineered Crash Safety
There’s a lot of engineering precision at play when a Cybertruck is involved in a crash. Unlike traditional crash structures that rely on crash cans and collapse points, the Cybertruck’s front gigacasting is designed to absorb and redirect impact forces in a highly controlled manner.
It all starts with the bumper beam, which crushes within the first few milliseconds of a high-speed impact. At the same time, the vehicle’s sensors rapidly analyze the crash dynamics and determine the optimal deployment of safety restraints, including airbags and seat belt pre-tensioners. These split-second actions are crucial in keeping occupants safe.
As the crash progresses, the vehicle’s structure deforms in a carefully engineered sequence. The drive unit cradle bends, directing the solid drive unit downward and out of the way, allowing the gigacasting to begin absorbing impact forces.
The casting crushes cell by cell, methodically dissipating energy in a controlled manner. This gradual deceleration reduces the g-forces transferred to occupants, making the crash much less severe. As the gigacast begins crushing, the safety restraints are deployed.
As Wes points out in his post - you can see how accurate the virtual analysis and modeling were. The video shows the simulated crash side by side with the real-life crash test and they’re almost identical. All that virtual testing helps provide feedback into the loop to design a better and safer system - one that is uniquely different than any other vehicle on the road.
All the armchair experts claimed the Cybertruck has no crumple zone and I get it, the proportions seem impossible. It was a tough one and there is a lot of engineering that went into it. Let me break it down for you:
Tesla has pioneered the use of single-piece castings for the front and rear sections of their vehicles, thanks to its innovative Gigapress process. Many automakers are now following suit, as this approach allows the crash structure to be integrated directly into the casting.
This makes the castings not only safer but also easier to manufacture in a single step, reducing costs and improving repairability. For example, replacing the entire rear frame of a Cybertruck is estimated to cost under $10,000 USD, with most of the expense coming from labor, according to estimates shared on X after high-speed rear collisions.
These insights come from Sandy Munro’s interview (posted below) with Lars Moravy, Tesla’s VP of Vehicle Engineering, highlighting how these advancements contribute to the improvements in Tesla’s latest vehicles, including the New Model Y.
However, with the new Model Y, Tesla has decided to go a different route and eliminated the front gigacast.
No Front Casting
Tesla’s factories aren’t equipped to produce both front and rear castings for the Model Y. Only Giga Texas and Giga Berlin used structural battery packs, but these were quickly phased out due to the underwhelming performance of the first-generation 4680 battery.
Tesla has gone back to building a common body across the globe, increasing part interchangeability and reducing supply chain complexity across the four factories that produce the Model Y. They’ve instead improved and reduced the number of unique parts up front to help simplify assembly and repair.
There is still potential for Tesla to switch back to using a front and rear casting - especially with their innovative unboxed assembly method. However, that will also require Tesla to begin using a structural battery pack again, which could potentially happen in the future with new battery technology.
Rear Casting Improvements
The rear casting has been completely redesigned, shedding 7 kg (15.4 lbs) and cutting machining time in half. Originally weighing around 67 kg (147 lbs), the new casting is now approximately 60 kg (132 lbs).
This 15% weight reduction improves both vehicle dynamics and range while also increasing the rear structure’s stiffness, reducing body flex during maneuvers.
Tesla leveraged its in-house fluid dynamics software to optimize the design, resulting in castings that resemble organic structures in some areas and flowing river patterns in others. Additionally, manufacturing efficiency has dramatically improved—the casting process, which originally took 180 seconds per part, has been reduced to just 75 seconds, a nearly 60% time reduction per unit.
Advancements in die-casting machines and cooling systems have allowed @Tesla to dramatically reduce cycle times and improve dimensional stability. pic.twitter.com/WB5ji67rvV
Tesla’s new casting method incorporates conformal cooling, which cools the die directly within the gigapress. Tesla has been refining the die-casting machines and collaborating with manufacturers to improve the gigapress process.
In 2023, Tesla patented a thermal control unit for the casting process. This system uses real-time temperature analysis and precise mixing of metal streams to optimize casting quality. SETI Park, which covers Tesla’s manufacturing patents on X, offers a great series for those interested in learning more.
The new system allows Tesla to control the flow of cooling liquid, precisely directing water to different parts of the die, cooling them at varying rates. This enables faster material flow and quicker cooling, improving both dimensional stability and the speed of removing the part from the press for the next stage.
With these new process improvements, Tesla now rolls out a new Model Y at Giga Berlin, Giga Texas, and Fremont every 43 seconds—an astounding achievement in auto manufacturing. Meanwhile, Giga Shanghai operates two Model Y lines, delivering a completed vehicle every 35 seconds.
![A Look at the Tesla Cybertruck’s Crumple Zones [VIDEO]](https://www.notateslaapp.com/img/containers/article_images/cybertruck/cybertruck-crash-test.webp/e43ef2433bd6e44ae8db63421604a4fb/cybertruck-crash-test.jpg)
