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Tesla reveals it is spending drastically more money on R&D
Tesla is spending drastically more money on Research and Development for its vehicles and other technologies like battery cell development, it revealed in a 10-Q filing with the SEC. However, the most expensive portion of the increase in R&D expenditures came from drastic growth in employee and labor-related expenses as Tesla’s workforce continues to grow. Still, the redesign of the Model S and X, along with the development of proprietary battery cells, also contributed to the exponential growth in money spent.
Tesla is one of the fastest-growing companies in the world. It is already the most valuable car company in existence, and as the electric automaker expands its footprint to other countries and regions, it is hiring a vast number of new people to handle any responsibility. From executives to production workers, Tesla is hiring in nearly every facet of its business, and its expenses are growing as a result.
Expenses in R&D increased $342 million, or 106% in Q1 2021 compared to Q1 2020. Tesla attributes the increase in R&D costs to a growth in the employee workforce, including anything from more people working at the company to an appreciation of the stock price.
Tesla wrote:
“R&D expenses increased $342 million, or 106%, in the three months ended March 31, 2021, as compared to the three months ended March 31, 2020. The increase was primarily due to a $147 million increase in employee and labor related expenses due to an increase in headcount and increased payroll taxes related to appreciation of our stock price.”
Earlier this month, we reported that Tesla’s workforce had grown considerably, according to the 10-K filing it released with the SEC. The workforce increased by 22,651 total full-time employees in 2020 compared to 2019, and the number continues to expand as Tesla opens more factories, service centers, and showroom locations globally.
Tesla’s Fremont factory workforce is growing and the automaker is preparing for it
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Past the increased workforce and overall company growth, a significant amount of money was pumped into expensed materials. These expenditures contributed to the “expanding product roadmap,” which included the redesigned and refreshed Model S and Model X, along with the 4680 battery cell project that Tesla has been working on.
Tesla recorded “a $122 million increase in R&D expensed materials and outside services and a $60 million increase in stock-based compensation expense. These increases were to support our expanding product roadmap, such as the new versions of Model S and Model X and technologies including our proprietary battery cells.”
The percentage of expenses due to the increased revenue increased from 5 to 6% Year-over-Year, but the increased expenditures were offset by “an increase in total revenues from expanding sales,” Tesla said.
Tesla has shown it funnels plenty of money into its products and aims to improve product functionality through internal expenditures. For years, Elon Musk has stood by his strategy not to hold a budget for advertising but instead funnel that money into the product itself. “Other companies spend money on advertising & manipulating public opinion, Tesla focuses on the product,” Musk said.
Tesla has started to deploy the 2026 Summer Update to owners across its fleet, and among the biggest changes are improvements to Navigation, a new startup animation for the Model 3 and Model Y, Caraoke scoring, and new capabilities for Grok.
As the update has started making its way to some cars, we can now see a few of the features operating in real-time. We will show you what some of the new features look like in this article, along with some additional details on what changed.
Not all of the new features in the 2026 Summer Update have quite made an appearance, but some of them have, so we’ll show those here:
New Animation Screen for 3/Y
Tesla is rolling out a new startup animation for Tesla Model 3 and Model Y owners. This is present in Launch Edition and Performance Model 3 and Model Y, but other trim levels do not have anything like this.
The new animation screen on Model 3/Y with the 2026 Summer Update
Apparently color will also be customizable: pic.twitter.com/wSdwggtG3S
— TESLARATI (@Teslarati) July 27, 2026
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Owners can adjust the color associated with the startup animation to suit their preferences. It is a surprise that more automakers do not focus on this animation for their vehicles; it can be a great first impression piece and make the car immediately feel more luxurious.
Tesla has included this on more premium trims, but it is nice to see it on the Model 3 and Model Y.
Grok Improvements
Grok can now adjust more things in the car outside of the Navigation system. Now, drivers can adjust anything from climate to driving settings by simply speaking to the AI assistant in the car:
@Tesla‘s AI assistant (Grok) with its new vehicle commands in action.
Set the climate, your destination and vehicle settings all in one go! pic.twitter.com/0bBTqaAk6G
— Not a Tesla App (@NotATeslaApp) July 28, 2026
You don’t even have to push a button, either. Instead, you can just say “Hey, Grok,” if you have it enabled. That feature rolled out with the 2026 Spring Update just a few months back.
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This is a great feature, especially pertinent for the Robotaxi platform, as there will be no buttons inside the Cybercab when it eventually starts giving rides to the public. It also broadens Grok’s capabilities, which were relatively limited in terms of vehicle setting adjustments beforehand.
Tesla briefly offered one Robotaxi part in its Parts Catalog for your personal car, only to remove it just a short time after it was first noticed.
Tesla’s Robotaxi camera washer apparatus was briefly available for purchase on the company’s Online Parts Catalog. The camera washer was first noticed on Model Y Robotaxi vehicles about six months ago in Austin.
🚨 Tesla looks to have installed Camera Washers on the side repeater cameras on Robotaxis in Austin
pic.twitter.com/xemRtDtlRR— TESLARATI (@Teslarati) January 23, 2026
First noticed by Not a Tesla App, the Camera Washer entries appeared for the new “Juniper” Model Y under a category called “Halo,” which has also now disappeared. Interestingly, Halo probably is related to Tesla’s internal “Project Halo,” which was a project that aimed to retrofit customer-owned Model Ys into functional Robotaxis.
This hardware addition would likely be required for the vehicle to operate as a Robotaxi, as the Camera Washer seems to be a non-negotiable part of the vision-based system Tesla utilizes for self-driving efforts.
However, this part has since been removed and is no longer visible on the EPC.
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Now the true question lingers: Why would Tesla add this Camera Washer to the Model Y parts catalog? Is it planning to make it available for owners to utilize on their own cars for personal use, or will it become a prerequisite for Robotaxi operation in customer-owned cars?
While discussing the upgrade options for Hardware 3 vehicles during the Q1 Earnings Call, Tesla CEO Elon Musk had said that the company could establish small, satellite shops that would upgrade cameras and self-driving computers. Perhaps this same strategy could be utilized for vehicles that want to be included in Robotaxi but do not have the correct hardware.
AI4 is currently represented as capable of unsupervised self-driving, and the same was said about HW3 at one point, only for Tesla to admit last quarter that it would, unfortunately, not be possible. Perhaps AI4 vehicles might need this camera washer as a prerequisite, just as HW3 cars will need that camera and computer upgrade.
This could be the first hint of that’s where we are headed.
Tesla has started rolling out a broader change to the ride experience for its Robotaxi fleet by silencing turn signals, but the change is certainly polarizing.
Tesla has generally made it clear that its purpose-built ride-hailing platform, Robotaxi, will cater to the rider in nearly every way possible. This includes having climate preferences, music, and other personal settings loaded up in the car as the rider enters.
But Tesla is taking it a step further by muting turn signal chimes altogether, a change that appears to be a way to make the ride more peaceful:
Tesla has finally turned off the blinker/turn signal noises in their Model Y Robotaxis.
This is a small update, but will definitely be noticeable for riders. It didn’t really make much sense to leave the turn signal sound on when it’s Unsupervised. pic.twitter.com/ITwx60PAMO
— Sawyer Merritt (@SawyerMerritt) July 27, 2026
However, there are a handful of people who are not thrilled about this change. Turn signals are a conditioned part of the human mind for those who ride in a car regularly.
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Taking a turn without one feels strange and odd, and not hearing it click while activated could set off some alarms for riders, who might use the noise as confirmation that other drivers know of their intention to turn.
I kind of like it being on, threw me off when riding with Zoox who has had it disabled
— Dan Burkland (@DBurkland) July 27, 2026
Turn signal noises are still audible in customer cars, so if you use FSD in your personal vehicle, you will still hear the turn signal.
The move is certainly one that is unique, but not one that separates it from other ride-sharing services. In a normal car, the clicking sound confirms to the driver that the blinker is active. In a fully driverless Robotaxi, that feedback serves no purpose for passengers, other than peace of mind.
Tesla Summer Update begins rolling out: a look at the new features
Tesla briefly offered this Robotaxi part for your personal car
