Stealth Grey is now available for the Model S and Model X
Tesla
Tesla has introduced a new color for the Model S and Model X: Stealth Grey. This fresh addition, showcased in a dynamic video on X, offers a sleek and sophisticated choice for the Model S and Model X.
For a company that doesn't advertise much, it certainly hit up the excitement with a video posted on X. Capturing the essence of the new Stealth Grey, the footage highlights the color's depth and sophistication. The first glance at this hue suggests a deeper version of the Midnight Silver that has been punted from the lineup.
Stealth Grey Joins the Ranks at No Extra Cost
What makes Stealth Grey an even more appealing choice for prospective Tesla owners is its accessibility. Unlike previous times, when opting for a color other than the standard meant additional costs, Tesla has included Stealth Grey in the base price of both the Model S and Model X. This inclusion follows a trend of recent price adjustments by Tesla.
Global Availability and Future Expansion
Initially rolled out for the Model S and Model X, the excitement around Stealth Grey isn't limited to North American markets. Tesla has also announced its availability for the new Model 3 in Europe and Asia. This move suggests that Tesla might be planning to make the new hue available across other models and regions in the near future. Stealth Grey for the new Model 3 is one of the more expensive colors, along with Ultra Red. It's not clear whether Tesla will offer the current Model 3 or the Model Y in Stealth Grey in the future.
Looking Forward: Tesla's Colorful Horizon
The introduction of Stealth Grey is not a solitary incident. A year ago, in October 2022, Tesla's Giga Berlin factory began rolling out vehicles in the stunning Quicksilver and Midnight Cherry Red. Since then, we've eagerly awaited these colors to make their way to other regions.
While speaking on the Ride the Lightning podcast, Franz von Holzhausen, Tesla's Chief Designer, stirred up the excitement. Though always careful with his words, he dropped strong hints about North America, soon witnessing an infusion of new shades. His genuine enthusiasm for the colors developed at Fremont with his team was evident as he spoke about how photos don't do justice to these shades. To truly appreciate their beauty, one must see them firsthand.
Tesla has historically maintained a simple yet elegant color palette for its models, reminiscent of Henry Ford's famous sentiment about the Model T only being available in black. From the start with the Model 3, Tesla kept the options concise, with a black color variant being the standard and other hues costing a bit more. This limitation was in the spirit of streamlining production, especially during challenging ramp-up periods. However, times change, and Tesla appears to be embracing a more colorful future.
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With all the attention on Cybertruck, Tesla is quietly working on the real game changer. Somewhere in Tesla's research and development is the Model 2, the next-gen, more affordable Tesla. It is the car that Tesla predicts will sell more than all of its other vehicles - combined!
The company has long been known for its futuristic and sleek designs, with the upcoming Model 2 touted as the most affordable and utilitarian offering yet. Yes, utilitarian were the words used by Elon Musk as he reiterated the primary focus for the Model 2 would be simplicity in design, manufacturing efficiency, and affordability.
But how might this vision translate into the actual car design? We have a few ideas using some hints and some lessons from the past. For simplicity's sake, we will refer to the next-gen car as the Model 2 in this article.
Teardrop Shape: Aerodynamic Mastery
Arguably the most aerodynamic shape for cars, the teardrop design minimizes drag, which is crucial for electric vehicles where range is paramount. The Model 2 could integrate this shape, focusing on the perfect harmony of form and function.
A vehicle is yet to be produced, but it has shown this design and how Tesla could use it. Aptera knows that in vehicle efficiency, drag coefficients are king. It is a crucial metric denoting aerodynamic resistance: while a Toyota Corolla registers at 0.29 and the Tesla Model 3 impresses with 0.23, the Aptera records 0.13. To put that in perspective, the bottlenose dolphin puts up a 0.1.
When McLaren set out to conceive their swiftest road-going model, it didn't merely optimize the engine; it sculpted the very form of the car itself. The McLaren Speedtail's streamlined silhouette, exemplified by its elongated tail, the omission of conventional side mirrors, and aerodynamic front wheel covers, is a testament to this design philosophy.
Three Wheels: Sneak Peak Lines up with Aptera
An image in the Walter Isaacson books seems to be a mock-up of a Model 2. Take a good look at both the product and the pictures on the wall behind it. It appears to be a three-wheel, tear-shaped vehicle. Aptera also has three wheels. The company says it "leads the pack by having the least "rolling resistance" â€" the energy needed to keep your tires rolling at a straight and steady pace."
Going to three wheels reduces the touch points and areas where energy can be lost. It could incorporate unconventional headlights or eliminate the traditional trunk. The Aptera's radically efficient design offers a glimpse of such out-of-the-box thinking.
Rethinking Doors and the Frunk: Simplifying Structure
While a four-door design is conventional, a two-door Model 2 would be simpler and likely cheaper to manufacture. Moreover, since the frunk primarily serves as storage in electric vehicles, Tesla could consider eliminating it altogether. This recalls Volkswagen's audacious 1-litre car concept, which featured gullwing doors and a futuristic design.
But we don't need to go back that far, as again, we can point to Aptera's design. The two-door, two-seater has storage room but certainly not to the same level as a Model 3. Given this Model 2 is going to be a point A to point B car, how much storage space is required?
Aero Wheel Design: Balancing Aesthetics with Efficiency
Tesla's Model 3 aero wheels have already demonstrated the balance between aesthetics and efficiency, offering up to a 3.4% boost in range. The Model 2 could take this further by fully enclosing the wheels or adopting innovative designs similar to the McLaren Speedtail's aerodynamic front wheel covers. It could go even further than that; see the next point.
Fender Skirts: Maximizing Range
Historically, fender skirts have shown a marked improvement in fuel efficiency. The original Honda Insight from 1999 achieved a drag coefficient of 0.25 with its covered rear wheels. By re-introducing fender skirts, Tesla could further streamline its impressive aerodynamics, extending the Model 2's range. But, as General Motors pointed out, this could require certain design adjustments, like narrower rear tires, to maintain safety and handling.
Mirrorless Design: Reducing Drag
Mirrors add drag, and if Tesla can persuade regulators, a mirrorless design would make the Model 2 even more streamlined. Replacing mirrors with cameras has been around for a while. Still, Tesla could be the one to popularize this in mass-market EVs. The company has already been touting this as a feature for the Cybertruck. However, some jurisdictions require external mirrors. At some point during the evolution of the car, regulators must understand that camera technology is superior to mirrors.
While these speculations are based on current trends and historical data, one thing is certain: Tesla's Model 2 will challenge conventions. As the company delves deeper into achieving unmatched manufacturing efficiency and affordability, the Model 2 will likely carry Tesla's legacy of innovation.
Tesla vehicles are equipped with two main computer systems: the MCU (Media Control Unit), which is responsible for entertainment and display functions, and the Autopilot/FSD Unit, often referred to as the FSD Computer.
Both of these systems have evolved over the years, and they’re commonly referred to by their generation. For example, MCU 2 refers to the second generation of the Media Control Unit. Similarly, the FSD computer is identified by its generation, often called Hardware 3 or Hardware 4, when referring to the third and fourth-generation hardware. More recently, Tesla has started referring to the FSD Computer as AI3 and AI4, but you’ll still hear the older terms used interchangeably.
These two systems are separate and they’re not upgraded at the same time, meaning it’s possible to have a vehicle with MCU 2 and FSD Hardware 3 or MCU 3 with Hardware 3. Some vehicles even feature MCU 1 alongside Hardware 3.
The MCU is not involved with Autopilot or FSD functions—it’s purely for infotainment and in-vehicle features such as vehicle visualization, gaming, maps, and entertainment. It doesn’t impact the capabilities or limitations of Tesla’s autonomous driving systems.
MCU 1 - NVIDIA Tegra 3
MCU 1 was the first media control unit to be introduced in Tesla vehicles, starting back in 2012. This system was used in the Model S and Model X until about April 2018, when Tesla began transitioning to MCU 2.
By the time the Model 3 launched in late 2017, it already included MCU 2. To keep legacy vehicles up to date, Tesla offers an infotainment retrofit that upgrades MCU 1 to MCU 2, which helps make the infotainment unit much more responsive and adds a variety of newer features. Tesla continues to support vehicles with MCU 1, although upgrades are much further apart. In 2024, Tesla added Automatic Emergency Braking (AEB) improvements to vehicles with MCU 1 and even support for FSD V12.3.6 (FSD HW3 required).
Period Offered: 2012 through April 2018
Upgrade: Available as a paid upgrade for Model S and Model X vehicles to go from MCU 1 to MCU 2.
MCU 2 - Intel Atom
The launch of the Model 3 introduced MCU 2, which ran on Intel’s Atom mobile processor. While the Intel Atom was capable at the time, it’s now considered outdated compared to modern standards. As Tesla continues to roll out new features, the limitations of the Atom processor have become more apparent.
There is a notable list of features that are unavailable to vehicles with MCU 2. Although Tesla has optimized software to improve compatibility, not all features have been made accessible to these vehicles.
Period Offered: MCU 2 was offered in 2017 (Model 3) through 2022 (availability differs based on region and model).
Upgrade: As of now, Tesla has not offered an upgrade path or retrofit to transition from MCU 2 to MCU 3, and they’re unlikely to do so.
MCU 3 - AMD Ryzen
In December 2021, Tesla began shipping vehicles with MCU 3, powered by AMD’s Ryzen processor. The first vehicles to feature MCU 3 were the refreshed Model S and Model X, which debuted in 2021. Shortly after, Model 3s and Model Ys were also equipped with MCU 3, and today, all Tesla vehicles, including the Cybertruck, come standard with MCU 3.
This MCU is now the most widely used on the road and is Tesla’s most advanced infotainment processor. It supports impressive 3D visualizations, allows improved gaming on the center touchscreen (and rear screens in equipped vehicles), and offers a host of other capabilities. MCU 3 is also the most feature-complete version, with new features being designed for it first and then backported to MCU 2 or MCU 1 when possible.
Period Offered: The first MCU 3 vehicles were released in December 2021 and is current through today.
Upgrade: MCU 3 is the most current infotainment unit that Tesla offers.
Features Missing on MCU 2 (Intel Atom)
High-fidelity park assist is limited to vehicles with MCU 3
Not a Tesla App
While Tesla does its best to continue to support MCU 2, there is a growing difference between the features available on a vehicle with an Intel Atom infotainment unit and one with the AMD Ryzen processor.
Feature
MCU 2
MCU 3
Games / Arcade
⚠️ Limited Games*
✅ Additional Games**
Parked View
⚠️ Split screen visualization with vehicle on left and map on right
✅ Full-screen Parked Viz - Shadows, Sun Reflections, Shadows
Vehicle Visualizations
⚠️ Some limitations, such as non-transparent glass
Improved UI for Display Modules - Media, Next Turn, Trip Planner
⚠️ Solid Color/Semi-Transparent
✅ Transparency + Background Blur for Display Modules
*Many recent game additions are available to MCU 3 only, including the ever-popular Vampire Survivors and Castle Doombad. Only certain Model S and Model X vehicles include a GPU and the ability to play games on Steam.
Identifying which MCU your vehicle has is straightforward. Simply go to Vehicle Options > Software > Additional Vehicle Information.
In the interface, you’ll find details about whether your vehicle is equipped with an Intel Atom (MCU 2) or AMD Ryzen processor (MCU 3).
MCU 4?
It’s been more than three years since Tesla introduced the AMD Ryzen-powered MCU. Despite advancements, including the transition from FSD Hardware 3 to AI4—and eventually AI5—there’s been no indication of an MCU 4 on the horizon.
The Ryzen processor’s impressive capabilities make it a solid choice for infotainment, and it’s well-suited to serve until there’s another big leap in CPU performance.
While Tesla will upgrade to MCU 4 at some point, it doesn’t seem imminent. Some may argue that Tesla transitioned to MCU 3 too late, leaving vehicles just a few years old feeling outdated. It’s possible Tesla might choose to introduce MCU 4 ahead of the need for more processing power, ensuring that older vehicles can continue to benefit from new software features in the future.
Following the surprising return of the turn signal stalk on the refreshed Model Y, reliable Tesla source Chris Zheng has indicated that the Model 3 will also be receiving a turn stalk. While it initially seems surprising, Tesla mentioned that after receiving lots of customer feedback, there is a lot of demand for the return of the stalk.
For those who appreciate the newer turn signal buttons on vehicles like the Cybertruck, this might come as a surprise. However, the Model 3 and Model Y are designed for the average driver transitioning from a traditional vehicle, making the removal of the turn signal stalk an unexpected and potentially disappointing change.
Turn Stalk
In a conversation during the latest episode of Jay Leno’s Garage, Tesla’s VP of Vehicle Engineering, Lars Moravy, mentioned that Tesla works to remove superfluous parts. In this case, they removed one part too many - and are now bringing back the turn signal stalk.
The updated stalk on the refreshed Model Y is a simplified version of the current Model Y stalk. It doesn’t include multi-stage turn signals (short three flashes versus staying), buttons, or other features. Pure and simple - it is utilized for signaling left and right. The rest of the functions of a traditional stalk remain either on the wheel or on the screen.
Lack of Right ‘Shifter’ Stalk
Tesla has no intent to bring back the right stalk, which is traditionally used to shift the vehicle from Drive to Reverse and Park in Teslas. It’s also used to activate Autopilot. The shifting functionality will remain on-screen or available via the backup by tapping the buttons on the ceiling near the hazards button. Shifting via the dash is intuitive and convenient once you get used to it - and with AutoShift hopefully coming out of Beta sometime soon, this could get even better.
Autopilot activation will remain with a button on the steering wheel. While a vehicle with a single stalk may look a little odd at first, Lars mentioned that Tesla didn’t receive many complaints about shifting or Autopilot use.
Retrofit
Not a Tesla App
We haven’t heard anything about retrofitting the 2024+ Model 3s with the turn signal stalk at this point. However, we imagine this may be a possibility in the future.
However, we can recommend using the wireless Enhauto’s S3XY Stalks if you want to bring a single or dual stalks back to your refreshed Model 3 and don’t want to wait for an official retrofit to arrive. They’re easy to install, well-designed, and reliable.
Other Models
The big question now is: will Tesla bring back the turn signal stalk for its other models? It’s possible, but we doubt it. The Model S and Model X, especially with the Yoke, feel more natural without a stalk, and the button-based signals suit their design. While a stalk might occasionally be useful—like signaling in and out of a roundabout—any future refresh of the S or X would likely include steer-by-wire instead.
On the Cybertruck, the absence of a stalk goes unnoticed, thanks to steer-by-wire, as the squircle steering wheel is never in an awkward position. After thousands of kilometers of daily driving, including plenty of roundabouts, the author can confidently say the signal stalk isn’t missed at all. In fact, the turn signal buttons feel more intuitive, given how the Cybertruck handles.
That said, could Tesla offer signal stalks as an option for those who prefer them? It’s not out of the question. We’ll keep you updated, but in the meantime, let us know—do you prefer turn signal buttons or a traditional stalk?
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