Tesla open sources design and engineering information for the original Roadster
Alexandre Prévot
Tesla's incredible journey started by piecing together the Roadster, a painstaking ordeal that nearly caused the company to go bankrupt more than once. The piece-by-piece instruction manual to build the car that started an automotive revolution has been made public, fully open-sourced. CEO Elon Musk posted on X: "All design & engineering of the original @Tesla Roadster is now fully open source. Whatever we have, you now have."
Community Engagement and Possibilities
The open-source announcement has sparked enthusiasm and curiosity within the engineering community. A post from the World of Engineering (@engineers_feed) on X, asking, "Does this mean I can build my own roadster in my garage?" garnered a direct response from Musk: "* some assembly required."
Theoretically, if one can get their hands on the parts, they have some direction to build one of these historic vehicles. From a business side, this kind of information sharing with competitors is curious, although it does follow Tesla's mission statement to accelerate the world's transition to sustainable energy. Although the information is 15 years old, it could provide some useful information.
Understanding the Open-Source Details
Tesla has clarified the nature of the information released, stating it's a resource for Roadster enthusiasts derived from the car's R&D phase. The details are not intended for manufacturing, repair, or maintenance and may not align with final production models. Users leveraging this information are reminded of their responsibility to adhere to legal and safety protocols, as Tesla offers no warranties for work done using these details. This open-source initiative encourages innovation but stresses the importance of safety and legal compliance.
The Roadster's History and the Future
Launched in 2008, the original Roadster was the first legal electric vehicle on highways to utilize lithium-ion batteries and achieve over 200 miles per charge. It bankrolled the next phase of Tesla, the Model S, and set a benchmark for future EVs.
While this open-source initiative revisits Tesla's past, it also shifts the focus back to the next-generation Roadster. Initially unveiled in 2017, its production has been delayed, and there is no timeline for when the new sportscars will be manufactured. Moreover, Tesla's focus on the Cybertruck and a more affordable $25,000 EV indicates a strategic balance between innovation and mass EV adoption.
Tesla's decision to make the original Roadster's design and engineering open source should not be too surprising. Musk has said, "I don't care about patents. Patents are for the weak. They don't actually help advance things. They just stop others from following you." Perhaps the biggest surprise is how long it took for Musk to open-source the Roadster blueprint.
While Tesla’s 2024 Holiday Update brought many new features, including Apple Watch Support, Cross Traffic Alerts, Weather Overlays, Search Along Route, and others, there are also several smaller items in this update that didn’t get much attention.
Ambient Lighting Now Affects Easter Eggs
The 2024+ Model 3 and Cybertruck both come equipped with ambient lighting, and Tesla is now taking advantage of this custom lighting feature by incorporating it into several easter eggs.
Rainbow Road: If you head over to Apps > ToyBox > Rainbow Road, you’ll find a new option available that allows the ambient lighting in the vehicle to also change shades while Rainbow Road is active. The Rainbow Road easter egg is a tribute to the iconic course course in Nintendo’s Mario Kart.
Check out the feature in action below:
🇮🇹 Con l’aggiornamento di Natale, quando attiviamo la pista arcobaleno, anche i LED interni diventeranno arcobaleno. Questa è una novità non documentata, scovata da un utente di TESLERS (chiaramente riguarda le Model 3 Highland)
Santa Mode: Just in time for Christmas, Tesla has improved Santa Mode by cycling the ambient lighting between Christmas colors. Similar to Rainbow Road, the use of ambient lighting for the easter egg is optional and can be enabled under Apps > ToyBox > Santa Mode.
When using Santa Mode with ambient lighting turned on, the lights will cycle just between Christmas colors, red, green and white, instead of the full rainbow. There’s a video of the feature below:
The Model S and Model X vehicles that support Steam gaming are receiving a Steam app update in the holiday update as well. This update could end up being very interesting, but for now Tesla says that the SteamOS, which also runs on Valve’s Steam Deck has been updated to version 3.6.
Valve outlines a wide range of fixes and improvements in their release notes for version 3.6, but Tesla simply states that the OS update includes performance enhancements and improved game compatibility.
The SteamOS hasn’t been updated on the Model S and X for quite a while, so we believe there may be more to this besides performance improvements and fixes. We’ll be looking to share some insights into this in the near future.
So, there you have it—three new features in the Holiday update that have mostly gone under the radar. While they may not apply to everyone, there are plenty of other cool features in the Holiday Update, like the arrival of Dynamic Road Closure Routing and Nearby Parking, that are coming to every vehicle, so go check out the full release notes.
At the 2023 Q3 Earnings Call, Tesla provided an update on its next-generation model, what many are referring to as the “Model 2” or “Model Q.” Although the actual model name is yet to be determined, it is known internally as Redwood.
During the 2024 Shareholder Meeting, Musk again mentioned the upcoming model, saying that Tesla is working on new products, including a more affordable vehicle and a larger SUV.
While we know the next-gen vehicle is aimed at the $25k to $30k USD market, we now have some new information thanks to a new report out of China.
Launch & Price
According to the Chinese outlet CNMO Technology News (Sina Finance), Travis Axelrod, Tesla’s Head of Investor Relations, announced plans to launch a new model. Axelrod shared this update while addressing senior corporate investors at an investor conference hosted by Deutsche Bank on December 5, 2024.
The goal of Project Redwood, internally dubbed “Model Q” by Deutsche Bank, is to achieve a post-subsidy price of under $30,000 USD. With the Federal EV Rebate potentially expiring next year, this suggests that the Model Q’s starting price will be around $30,000 USD. For comparison, the Model 3 currently starts at $42,490 in the U.S.
We previously reported that Tesla has already been speaking to suppliers and is looking to begin volume production of the vehicle sometime around June 2025. Of course, prototyping is still necessary, but we haven’t seen any signs of Tesla testing a new vehicle since spotting the Cybercab on the streets ahead of We, Robot.
Specs
The Model Q will supposedly be about 15% smaller and 30% lighter than the Model 3, with an approximate length of 3,988mm, or 157 inches. For scale, the Mini is 157 inches, while the Model 3 is 185 inches, so it’s fairly compact.
The battery will also be smaller to match the vehicle’s smaller size as Tesla tries to reduce the vehicle’s price while maintaining a similar range as its other vehicles. Tesla is expected to offer two models—a single-motor RWD model and a Long-Range Dual-Motor AWD variant.
The lower trim level will include a 53 kWh lithium iron phosphate (LFP) battery, while the AWD version is expected to include a 75 kWh LFP battery. The report says that the vehicle will be able to travel up to 500 km (310 miles) on a single charge, but it’s not clear whether this will be for the more efficient RWD version or the AWD variant.
Given the vehicle’s weight reduction compared to the Model 3, this type of range is likely for the lower trim level.
Variant
Motors
Battery Size
Estimated Range
RWD
1
53 kWh (LFP)
310 miles (500km)?
AWD
2
75 kWh (LFP)
?
There’s no news yet on the price of the AWD version, but we expect it to be about $5,000 more expensive than the RWD variant.
Once the vehicle ramps up in production, Tesla intends to produce about 10,000 of these per week globally or about 500,000 per year. As Tesla mentioned during one of their previous earnings calls, this next-gen vehicle will be built using Tesla’s current assembly lines with minimal changes. This should allow for a smoother and more predictable production ramp. While Tesla still plans to use its new unboxed assembly process, it’s now saving it for the robotaxi.
We’re expecting Juniper to launch early next year, as production has supposedly already begun at Giga Shanghai, at least on a limited prototyping basis. If the rollout matches the Model 3 Highland refresh, we’ll see Juniper arrive in China first and then make its way to North America and Europe by the end of 2025. The performance variants should launch in early 2026, after the standard models.
If you’re excited about Juniper, so are we! Check out our wishlist of features for Tesla’s Model Y refresh, and see everything we know so far.
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