Rimac Validates Tesla Roadster's Ambitious Thruster Goals: A New Hypercar Benchmark?

By Kevin Armstrong
Roadster Vs Nevera Soon!
Roadster Vs Nevera Soon!
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The electric hypercar realm is witnessing the beginning of an unbelievable hypercar rivalry. Up for grabs is the fastest production car in the world, which is also electric. In one corner is the reigning, defending hypercar champion, Rimac’s Nevera. In the other corner is Tesla's forthcoming Roadster SpaceX Edition.

The Battle for Hypercar Hegemony

Elon Musk's late-night revelations earlier this week have promised a next-generation Roadster that defies conventional automotive norms, particularly with hints at rocket thruster-enhanced performance that will launch the car from 0-60 mph in less than one second. His posts caught much attention, including those of Mate Rimac, CEO of Rimac Automobili.

..it is possible with thrusters. We did the simulation… - Mate Rimac

Rimac is a pivotal figure in the hypercar world, renowned for blending high performance with electric propulsion. When asked about Tesla's audacious acceleration claim, he weighed in with a blend of technical insight and real-world pragmatism. His perspective is not just academic; it's grounded in the tangible realities of engineering and physics that govern high-performance vehicles.

Fast but Heavy, Light but “Slow”

Rimac acknowledged the feasibility of Tesla's target, citing thrusters as a viable means to surpass traditional acceleration benchmarks. However, he underscored the inherent trade-offs, noting the considerable weight of the necessary equipment—tanks, compressors, valves, and nozzles—that, while contributing to initial acceleration, become dead weight after that.

Rimac also points out another flaw: “Plus, the car has to be super light as otherwise, you can’t create a lot of excess downforce with the fans as the tires would be overloaded very fast with any kind of car with “normal supercar” weight, especially electric. And then again, you are carrying the weight with you when you are not doing 0-100. So thrusters are really the only way to go. But it brings a lot of downsides as well.”

Nevera, costing approximately $2.5 million, dominates the scene with more than 1,800 horsepower and its record-shattering performances, including an extraordinary 0-60 mph time of 1.74 seconds and a 0-400 km/h sprint in 21.31 seconds. When Nivera posted these incredible numbers, Musk was asked if the Roadster could beat the time and responded: lol.

Beyond the Numbers

Rimac's acknowledgment of the technical hurdles associated with Tesla's approach does not detract from the potential impact of the Roadster. Instead, it adds a layer of credibility to the discussion, grounding it in the realities of automotive engineering. It's a reminder that the quest for unparalleled acceleration involves balancing the thrill of speed with the practicalities of vehicle design and functionality.

This dialogue between Tesla and Rimac marks a significant moment in the EV industry. Tesla's pursuit of the ultimate performance EV with the new Roadster places it in direct conversation with Rimac. This company has consistently pushed the boundaries of what electric hypercars can achieve. The interaction underscores a broader theme in the automotive world: the relentless pursuit of innovation, where companies like Tesla and Rimac are not just competing but also learning from each other.

With both companies poised to innovate further and redefine what's possible, the rivalry between Tesla's Roadster and Rimac's Nevera is more than a contest of speed—it's a testament to the relentless pursuit of innovation that drives the electric vehicle industry forward. The Roadster is to start deliveries in 2025. Odds are the first place it will be is on the track beside a Nevera!

Tesla’s Sentry Mode Will Soon Play Music at Max Volume When Triggered

By Karan Singh
Not a Tesla App

Following Tesla’s Q1 2025 All-Hands Meeting, the company quietly updated the Cybertruck’s webpage. When we first checked it during our Live Space, nothing immediately stood out. At first glance, the changes seemed to be mostly stylistic—aligning the page’s format with the rest of Tesla’s site while adding a Cyber-inspired twist with unique fonts and boxed media elements.

But this morning, we took a closer look—because if there’s one thing Tesla loves, it’s hiding details in plain sight. And sure enough, we found an interesting change around Sentry Mode — playing loud music.

Sentry Mode Music

Tesla quietly updated the Sentry Mode section on the Cybertruck’s about page, adding new text that reveals Sentry Mode will soon be able to play loud music when it’s triggered. The text on Tesla’s site states:

“Enable Sentry Mode to monitor your unattended vehicle or trailer, and automatically activate the alarm, increase the touchscreen brightness, and play music at max volume if a threat is detected.”

That last detail—playing music at max volume—is a brand-new addition to Sentry Mode. Tesla has already expanded Sentry’s coverage to also cover attached trailers and previously announced that the system may soon honk in response to vandalism.

This latest change appears to build on that, leveraging the Cybertruck’s Superhorn and external speaker, which can already play music when parked via the Boombox feature. We suspect this feature won’t rely on the internal speakers, as the music would have to be extremely loud in order to be heard outside the car.

And given how loud the Superhorn and external speakers are—powerful enough to function as a proper horn—this could be an effective deterrent for vandals or intruders.

Other Models Too?

While this feature was spotted on the Cybertruck’s page, it’s unlikely that it’ll be exclusive to the stainless steel beast. We did a quick scan of Tesla’s other vehicle pages, but the change hasn’t made it over to other pages yet. While Tesla’s other vehicles don’t include the Superhorn, most are equipped with an external speaker for the Pedestrian Warning System (PWS)—which also powers the Boombox feature.

If your Tesla supports Boombox, it’s likely that Sentry Mode Music will roll out across the lineup once the update is released. However, legacy vehicles without a PWS will likely miss out on this feature.

When Will It Be Released?

To answer everyone’s favorite question, we know it’s not in Tesla’s 2025.8 update, which has recently started rolling out. Given the small 2025 releases so far (2025.2 and 2025.8), Tesla may be preparing a larger 2025 Spring Update similar to last year’s.

We’re about a month away from the arrival of Tesla’s Spring Update, and this could be one of the included features.

The real question is: Will Tesla allow custom sounds or music via USB? If so, the possibilities just got a whole lot more entertaining.

New 'Wile E. Coyote' Wall Video Puts Tesla's FSD V13 to the Test

By Karan Singh
Not a Tesla App

Last week, Mark Rober, an engineering YouTuber best known for his glitter bombs, released a video where he tested Tesla's Autopilot against various conditions - including the iconic ACME painted wall.

During this test, many people noted that Mark was using Autopilot rather than FSD, even though his video was titled “Can you Fool a Self-Driving Car?”. The Tesla on Autopilot went up against a vehicle equipped with Luminar’s LIDAR rig, running some sort of basic autonomy or safety software.

New Video Tests FSD

Many people were disappointed with Mark’s video and his testing methods, so several creators got to work to actually test out Tesla’s FSD.

Creator Kyle Paul over on X made a much better follow-up video, using both a HW3 Model Y as well as an AI4 Cybertruck. In a relatively unsurprising turn of events, the Cybertruck was successfully able to detect the wall, slowed down, and came to a stop. The Cybertruck was running FSD 13.2.8.

Kyle’s team did a fantastic job building the wall and testing this in a private area using FSD rather than Autopilot. On top of that - they re-tested the results several times and recorded the entire thing in and out. While Mark’s video was more for entertainment, Kyle really set out to prove what would really happen in this unlikely scenario.

Sadly, the HW3 Model Y was unable to detect the wall, and manual intervention was required in each test. While the Model Y was running FSD 12.5.4.2 rather than an FSD V12.6 build, we don’t expect this to have had a significant impact on the test - this is more of an issue with how computer vision analyzes the environment.

There are several major differences between HW3 and HW4. The first is obviously that the version that runs on AI4 is more advanced, as the hardware is capable of processing a lot more data. However, AI4 also features much higher-resolution cameras than HW3, and Tesla recently added the ability for the video feeds to be processed at full resolution on FSD V13. This could have made the difference, although it’s not entirely clear. Perhaps if HW3 gets a version of FSD V13 in the future, HW3 can be retested to see if it passes the “ACME wall” test.

Watch

Kyle’s entire video is below. It’s only 10 minutes long, so definitely give it a watch. Props to Kyle on the quick and thorough execution.

What Does This Mean for FSD?

We broke down Mark’s test - and examined all the little issues that we discovered after doing some in-depth research - you can read our analysis here. 

Putting aside the issues with Mark’s testing and instead using the new results - it seems that if you were to have to fight against Wile-E-Coyote and his ACME tools with your Tesla, cartoon logic may win if you’re on an HW3 vehicle. If you’re on an AI4 vehicle, you’ll likely come to a safe stop.

Vehicle depth perception is definitely something that Tesla has been hard at work to improve - and some fairly drastic improvements came with FSD V13 that haven’t been entirely translated to FSD V12 just yet. Future versions of HW3 FSD may be able to determine that the wall is there successfully. So Kyle - if you’re reading this - don’t get rid of that wall. We’d love to see more testing in the future.

However, this entire test scenario is so out of left field… there is a good likelihood this same test would fool some human drivers as well. The most important part is that the future of autonomy will not fall for these tricks, so it's very unlikely for someone to weaponize this idea as it’d only possibly work on a small segment of vehicles.

If Wile-E-Coyote is after you, someone else may drive into the wall before your Tesla does.
If Wile-E-Coyote is after you, someone else may drive into the wall before your Tesla does.
Not a Tesla App

We’re not kidding, this really happened already. This isn’t a realistic scenario outside of someone trying to play an insane prank - but it’s good to know that FSD V13 is capable of dodging this.

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