

News
Tesla engineers share Model 3 steering, drivetrain, and suspension secrets
The Tesla Model 3 is practically taking over the electric car market, establishing a strong presence in every region where it is released. A key reason behind this lies in the fact that the Model 3 happens to be a really fine automobile that just happens to be electric. It’s quick on its feet, handles nimbly despite its weight, and it provides a ride that is both sporty and comfortable.
One of the UK’s most established motoring magazines, Autocar, spoke with a number of Tesla engineers to gain some insights on the design and development process of the Model 3. The result was an extensive discussion in how a clean-sheet design and a serious commitment to safety could make all the difference when creating a car that is, for all intents and purposes, intended to reinvent the automobile.
Tires
Immediately emphasized by the Tesla engineers was that the Model 3’s chassis and suspension were designed using a ‘first principles’ clean-sheet approach. This started with the Model 3’s tires, which the engineers fondly described as the “unsung heroes” of the vehicle, being critical to its feel and drivability. The development of the Model 3’s tires began back in 2015, when Tesla started working with manufacturers to create the ideal tires for the electric sedan.
The engineers noted that the tires of a high-performance electric car like the Model 3 are challenged in different ways compared to gas-powered automobiles. This is due to a number of factors, including the vehicle’s weight and its instant torque. Since the bulk of an EV’s mass is situated lower down compared to a vehicle with an internal combustion engine, there is less vertical force buildup on the outside pair of tires to generate grip when cornering.
To address this, Tesla focused on tread stiffness, even developing new compounds to deliver a good combination of cornering grip and low rolling resistance for the Model 3’s tires. Sound-absorbing foam placed inside the tire cavity further increases comfort during driving by suppressing noise. The Model 3’s rear wheels hold some interesting secrets as well. The engineers revealed that each rear wheel of the electric sedan has six degrees of freedom, with five links and one damper, though the links are split to allow superior control over forces that are transmitted through the vehicle’s tire contact patch.

Safety Systems and Steering
The Model 3 has earned a perfect 5-Star Safety Rating from the NHTSA, the Euro-NCAP, and the ANCAP. This comes as no surprise, considering that the vehicle is designed from the ground up to emphasize safety. The Model 3’s front suspension, for example, was specifically designed to provide maximum protection in small-overlap frontal collision crash tests.
Sacrificial links that are designed to snap when the front wheel and suspension get damaged are also integrated into the vehicle, allowing the Model 3’s front wheels to rotate. This moves the front wheels outside the Model 3’s body, while pushing the car, its occupants, and its battery pack from the point of impact. These safety systems extend to the Model 3’s dual-motor AWD variants as well.
Tesla designed the Model 3’s electric power steering system to have a rapid 10:1 ratio. The power steering is equipped with full redundancy with separate power feeds taken directly from the vehicle’s high-voltage battery. The engineers also mentioned two electronic modules and two inverters providing “hot backup” to the system if one fails.
Brakes
The Model 3’s braking system is quite unique, in the way that Tesla opted to equip the electric sedan with more expensive four-pot brake calipers at the front wheels instead of a single-piston sliding mechanism. This gives the Model 3 superior pedal response, and it opened the door for the electric car maker to design its own piston seals that fully retract the brake pads after braking; thus, boosting available driving range and cutting drag. Such a system adds to the Model 3’s efficiency, which has proven superior to other premium electric vehicles like the Audi e-tron and the Jaguar I-PACE.
Elon Musk has mentioned multiple times in the past that brake pads in a Tesla will last for the lifetime of a vehicle. This is no exaggeration, according to the Tesla engineers, who noted that the Model 3’s discs and brake pads are designed to last for around 150,000 miles. This is made possible by the Model 3’s regenerative braking system, which allows drivers to slow down the vehicle without using its physical brakes. As for rust issues, the engineers pointed out that Tesla has developed new anti-corrosion techniques for its electric cars.
Suspension
Perhaps the most interesting tidbit discussed by the Tesla engineers involved the Model 3’s suspension. In true Elon Musk fashion, Tesla actually used concepts from NASA when it was refining the suspension settings of the electric sedan. The electric car maker based the Model 3’s suspension settings on a study by the space agency about how long the human body can be subjected to a certain frequency without feeling uncomfortable. Considering that the vertical frequency of a suspension’s movement affects comfort and drivability, Tesla engineers settled on a vertical frequency that is equivalent to a brisk walk or a slow run to give the Model 3’s chassis a comfortable, sporty feel.
The Model 3’s suspension has impressed a number of industry experts, among them being automotive veteran and teardown expert Sandy Munro of Munro and Associates. During his teardown of the vehicle, Munro noted that the Model 3 has areas of improvement in its body and finish, but everything from the electric car’s suspension, all the way down to its tires, is flawless. In a segment on YouTube’s Autoline TV, Munro mentioned that the person who tuned the Model 3’s suspension could easily be an “F1 Prince.”
During the electric car maker’s second-quarter earnings call, Elon Musk mentioned that the “story for Tesla’s future is fundamentally Model 3 and Model Y.” While the Model S and Model X were made to prove that electric vehicles could be superior alternatives to gas-powered premium sedans and SUVs, the more affordable Model 3 — and in extension, the Model Y — would likely be the cars that could reinvent the automobile and encourage mass-market car buyers to rethink what a vehicle could be like. Based on the Model 3’s success so far, it appears that Tesla is so far succeeding in this endeavor.
H/T to JPR007.
Elon Musk
Tesla ‘activist shareholders’ sue company and Elon Musk for Robotaxi rollout
Tesla’s activist shareholders are coming after the company, claiming it misled investors about the Robotaxi rollout.

Tesla’s “activist shareholders” seem to be one of the biggest threats to the company and its CEO, Elon Musk, who has spoken extensively about them in recent times. They’re up to their latest bit of work against the company, suing both Tesla and Musk, accusing them of securities fraud by alleging they concealed “significant risk” over the Robotaxi launch in Austin, Texas.
On Monday night, a group of shareholders sued Tesla and Musk in a proposed class action lawsuit in Texas federal court. They claim Tesla misled investors about the safety of the vehicles used in the Robotaxi rollout in Austin, which started on June 22.
The suit indicates that videos show the vehicles “speeding, exhibiting sudden braking, driving over a curb, entering the wrong lane, and dropping passengers off in the middle of multilane roads.” Reuters first reported on the lawsuit.
The plaintiffs are seeking damages for shareholders between April 19, 2023, and June 22, 2025.
Tesla’s Robotaxi platform has been operating for less than two months, and the company has already expanded its geofence in Austin twice.
🚨 Tesla Austin Robotaxi geofence sizes (in square miles):
Initial: 6/22 – ~20 square miles
First Expansion: 7/14 – ~42 square miles
Second Expansion: 8/3 – ~80 square miles pic.twitter.com/IwnvSJseE4
— TESLARATI (@Teslarati) August 3, 2025
In the roughly six weeks that Robotaxi has been operational, Tesla has only had one incident reported to the Austin Government, and it was a “Safety Concern” in June 2025. Since July 2023, which is when autonomous vehicle operation began in Austin, 130 incidents have been reported. AV Ride, Cruise, Waymo, and Zoox also operate in Austin.
Waymo has the most incidents with 73. Its first was in June 2024 when a unit blocked traffic.
Activist Shareholders
Musk has warned that activist shareholders are potentially dangerous to both Tesla and his position as CEO. He recently spoke about them during the Q2 Earnings Call regarding his stake in the company:
“That is a major concern for me, as I’ve mentioned in the past. I hope that is addressed at the upcoming shareholders meeting. But, yeah, it is a big deal. I want to find that I’ve got so little control that I can easily be ousted by activist shareholders after having built this army of humanoid robots. I think my control over Tesla, Inc. should be enough to ensure that it goes in a good direction, but not so much control that I can’t be thrown out if I go crazy.”
Tesla’s Board yesterday made an attempt to help secure Musk’s stake by offering him a massive 96 million share pay package of restricted stock. It will only help his stake in the company bump up slightly to 14.6 percent from 12.9 percent.
News
Radical Tesla aero patent may make new Roadster’s ~1-sec 0-60 mph launch feasible
The patent is for a multi-mode active aero system that uses fans and deployable skirts to generate controllable downforce.

A radical new patent from Tesla has provided a potential hint at a technology that the electric vehicle maker can utilize to meet the new Roadster’s ambitious 0-60 mph targets. If the technology outlined in the patent does come into fruition, it could help the Roadster stay planted on the ground even as it executes extremely rapid and demanding driving maneuvers.
The Roadster’s 0-60 mph time
When the new Roadster was announced way back in late 2017, Elon Musk stated that the upcoming vehicle would have a 0-60 mph time of 1.9 seconds. This was impressive, but the new Roadster has become so late that this metric is no longer industry-leading. Even Tesla’s own Model S Plaid, a large and heavy family sedan, can now hit a 0-60 mph time in 1.99 seconds, all for a price that starts just under $100,000.
Back in February 2024, Elon Musk stated that Tesla “radically increased the design goals for the new Tesla Roadster.” He stated that there will never be another car like the Roadster, if it could even be called a car. Musk also added that Tesla is now looking to achieve a 0-60 mph time in less than one second with the new Roadster, though this would be the “least interesting part” of the vehicle.
Inasmuch as a 0-60 mph time of 1 second or less sounds insane, these figures are achieved by vehicles like top fuel dragsters, which could accelerate well under 1 second. Of course, these vehicles are specialized machines and not road legal by any means, so the Roadster would still be in a class of its own if Tesla does manage to achieve a sub-1-second 0-60 mph time.
Tesla’s new aero patent
A new patent from Tesla has now outlined a technology that could be a perfect fit for the upcoming all-electric supercar. Tesla’s patent is for a multi-mode active aero system that uses fans and deployable skirts to generate controllable downforce. This should pave the way for optimal vehicle grip and performance across varying conditions, from the track to the drag strip.
Tesla describes the patent’s technology as follows:
“The system operates by creating bounded (e.g., sealed or partially-sealed) regions beneath the vehicle through the selective deployment of skirts that interact with the ground surface. Fans positioned in airflow pathways that extend to these bounded regions generate low pressure within these areas by extracting air, creating downforce that enhances vehicle grip and stability (e.g., by creating a vacuum, or partial vacuum in the bounded regions).”
If Tesla could indeed create a fully bounded region under the new Roadster using the technology outlined in the patent, the company could all ensure that the all-electric supercar always has perfect traction when it launches. It could also help the vehicle handle better in corners, which would be useful if the Roadster were to attempt setting records in tracks such as the Nurburgring.
Check out Tesla’s patent below.
Tesla Roadster Patent by Simon Alvarez on Scribd
Elon Musk
Tesla’s new Robotaxi geofence shape is an FU by Elon Musk to the competition
Maybe it’s all pareidolia. But maybe it’s not. After all, Tesla embraced the first geofence expansion for what it appeared to be.

Tesla expanded its Robotaxi geofence in Austin once again early Sunday morning. The new shape seems to be somewhat of a proverbial, and potentially literal, middle finger to the competition.
If you thought the first expansion was a message to the competition and doubters of the company’s ride-hailing service, you probably will believe the second expansion is an even stronger gesture.
Tesla’s first expansion did not go unnoticed, as its shape was particularly recognizable. The company has always operated with a sense of humor, and it embraced what it did. Some, including me, took it as a message to competitors: We can expand in any direction, in any size, at any time. We’ll prove it.”
They picked a shape and went with it:
Tesla’s Robotaxi expansion wasn’t a joke, it was a warning to competitors
It is evident that Tesla is keeping its humor up to continue to show a few things. The first is that it really can expand in any direction it wants and that’s how it is choosing to show it.
The second, well, maybe it’s an edgier way to show doubters that it is really executing on Robotaxi:
Tesla has expanded the Austin RoboTaxi network.
Looks like a giant middle finger.
Giant F U to the competition? 🤷🏻♂️ pic.twitter.com/tcaIxdQk10
— Farzad (@farzyness) August 3, 2025
all I see is Tesla giving the middle finger pic.twitter.com/P4otjxSCQm
— Daniel Harding (@ArchamusDK) August 3, 2025
Maybe it’s all pareidolia. But maybe it’s not. After all, Tesla embraced the first geofence expansion for what it appeared to be. This might be a similar occurrence, and it might be sending another message to the competition, critics, and doubters.
The expansion was a near-doubling of the geofence Tesla offered previously. After the initial geofence covered just about 20 square miles, Tesla was able to more than double it to 42 square miles with the first growth. This new geofence shape was just under double, and is about 80 square miles.
Tesla’s rapid expansion has impressed many, especially considering the service area has roughly doubled for the second time in well under two months. The Robotaxi service was first offered on June 22.
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