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Tesla Semi mono wiper looks effective in the rain in recent sighting

Image Credit: u/lil_nar/Reddit

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The Tesla Semi is not like other Class 8 trucks in the market. It’s all-electric, it can travel 500 miles on a single charge, and it’s zero-emissions. It also is equipped with a large mono wiper, which, as per a recent sighting, actually seems to work very well in the rain. 

The video of a new Tesla Semi sighting was recently posted in the r/TeslaMotors subreddit. The short clip seemed to be recorded from a Tesla’s built-in dashcam, and it showed a Tesla Semi wrapped in Frito-Lay decals traveling in the rain. Due to the rainy weather, the Semi’s windshield wiper was engaged. 

The short video showed the Semi’s mono wiper system, which uses two moving sub-arms that actively steer a single wiper, working in real-world conditions. Despite the Semi’s large windshield, one could see that the mono wiper system was cleaning a wide portion of the glass with each swipe. Some Tesla enthusiasts in the subreddit, however, have noted that such a wiper system may run into some problems during icy conditions. 

Mono wipers have never really become mainstream save for a few consumer vehicles, and definitely not for Class 8 trucks like the Tesla Semi. Mercedes-Benz infamously rolled out its “eccentric sweep” mono blade wipers in the 1980s, which cleared 86% of the windshield in a vehicle like the W124, more than any production car at the time, as per Hemmings. The novel mono wiper system was quietly retired in the 90s, however. Speculations suggest that this was partly due to the system being more complex and slower than a conventional dual wiper system, among other reasons.

Tesla appears to be fond of mono wipers for its larger vehicles. The Semi was launched with a single wiper setup, and as one could see in the recently-shared video, it actually seems like a great idea. The Cybertruck, however, was unveiled without a wiper at all, but sightings of production beta units in the wild suggest that the all-electric pickup truck might also be equipped with a single wiper system. 

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There is an issue, however. Unlike the Semi’s mono wiper, which is set up in the middle of the windshield, the Cybertruck’s large, single wiper in its production beta units is situated only on the driver’s side. This suggests that the all-electric pickup truck’s wiper system would likely not be as good as the Semi in rainy weather. Tesla seems to be aware of this problem though, with Elon Musk admitting on Twitter that the Cybertruck’s wiper system is something that “troubles” him the most about the vehicle. 

Watch the Tesla Semi’s mono wiper system in action in the video below. 

Thought I’d Share Some Semi Rain + Wiper Action
by u/lil_nar in teslamotors

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Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Tesla needs to come through on this one Robotaxi metric, analyst says

“We think the key focus from here will be how fast Tesla can scale driverless operations (including if Tesla’s approach to software/hardware allows it to scale significantly faster than competitors, as the company has argued), and on profitability.”

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Tesla needs to come through on this one Robotaxi metric, Mark Delaney of Goldman Sachs says.

Tesla is in the process of rolling out its Robotaxi platform to areas outside of Austin and the California Bay Area. It has plans to launch in five additional cities, including Houston, Dallas, Miami, Las Vegas, and Phoenix.

However, the company’s expansion is not what the focus needs to be, according to Delaney. It’s the speed of deployment.

The analyst said:

“We think the key focus from here will be how fast Tesla can scale driverless operations (including if Tesla’s approach to software/hardware allows it to scale significantly faster than competitors, as the company has argued), and on profitability.”

Profitability will come as the Robotaxi fleet expands. Making that money will be dependent on when Tesla can initiate rides in more areas, giving more customers access to the program.

There are some additional things that the company needs to make happen ahead of the major Robotaxi expansion, one of those things is launching driverless rides in Austin, the first city in which it launched the program.

This week, Tesla started testing driverless Robotaxi rides in Austin, as two different Model Y units were spotted with no occupants, a huge step in the company’s plans for the ride-sharing platform.

Tesla Robotaxi goes driverless as Musk confirms Safety Monitor removal testing

CEO Elon Musk has been hoping to remove Safety Monitors from Robotaxis in Austin for several months, first mentioning the plan to have them out by the end of 2025 in September. He confirmed on Sunday that Tesla had officially removed vehicle occupants and started testing truly unsupervised rides.

Although Safety Monitors in Austin have been sitting in the passenger’s seat, they have still had the ability to override things in case of an emergency. After all, the ultimate goal was safety and avoiding any accidents or injuries.

Goldman Sachs reiterated its ‘Neutral’ rating and its $400 price target. Delaney said, “Tesla is making progress with its autonomous technology,” and recent developments make it evident that this is true.

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Investor's Corner

Tesla gets bold Robotaxi prediction from Wall Street firm

Last week, Andrew Percoco took over Tesla analysis for Morgan Stanley from Adam Jonas, who covered the stock for years. Percoco seems to be less optimistic and bullish on Tesla shares, while still being fair and balanced in his analysis.

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Credit: Tesla

Tesla (NASDAQ: TSLA) received a bold Robotaxi prediction from Morgan Stanley, which anticipates a dramatic increase in the size of the company’s autonomous ride-hailing suite in the coming years.

Last week, Andrew Percoco took over Tesla analysis for Morgan Stanley from Adam Jonas, who covered the stock for years. Percoco seems to be less optimistic and bullish on Tesla shares, while still being fair and balanced in his analysis.

Percoco dug into the Robotaxi fleet and its expansion in the coming years in his latest note, released on Tuesday. The firm expects Tesla to increase the Robotaxi fleet size to 1,000 vehicles in 2026. However, that’s small-scale compared to what they expect from Tesla in a decade.

Tesla expands Robotaxi app access once again, this time on a global scale

By 2035, Morgan Stanley believes there will be one million Robotaxis on the road across multiple cities, a major jump and a considerable fleet size. We assume this means the fleet of vehicles Tesla will operate internally, and not including passenger-owned vehicles that could be added through software updates.

He also listed three specific catalysts that investors should pay attention to, as these will represent the company being on track to achieve its Robotaxi dreams:

  1. Opening Robotaxi to the public without a Safety Monitor. Timing is unclear, but it appears that Tesla is getting closer by the day.
  2. Improvement in safety metrics without the Safety Monitor. Tesla’s ability to improve its safety metrics as it scales miles driven without the Safety Monitor is imperative as it looks to scale in new states and cities in 2026.
  3. Cybercab start of production, targeted for April 2026. Tesla’s Cybercab is a purpose-built vehicle (no steering wheel or pedals, only two seats) that is expected to be produced through its state-of-the-art unboxed manufacturing process, offering further cost reductions and thus accelerating adoption over time.

Robotaxi stands to be one of Tesla’s most significant revenue contributors, especially as the company plans to continue expanding its ride-hailing service across the world in the coming years.

Its current deployment strategy is controlled and conservative to avoid any drastic and potentially program-ruining incidents.

So far, the program, which is active in Austin and the California Bay Area, has been widely successful.

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News

Tesla Model Y L is gaining momentum in China’s premium segment

This suggests that the addition of the Model Y L to Tesla China’s lineup will not result in a case of cannibalization, but a possible case of “premiumization” instead.

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Credit: Tesla

Tesla’s domestic sales in China held steady in November with around 73,000 units delivered, but a closer look at the Model Y L’s numbers hints at an emerging shift towards pricier variants that could very well be boosting average selling prices and margins. 

This suggests that the addition of the Model Y L to Tesla China’s lineup will not result in a case of cannibalization, but a possible case of “premiumization” instead.

Tesla China’s November domestic numbers

Data from the a Passenger Car Association (CPCA) indicated that Tesla China saw domestic deliveries of about 73,000 vehicles in November 2025. This number included 34,000 standard Model Y units, 26,000 Model 3 units, and 13,000 Model Y L units, as per industry watchers. 

This means that the Model Y L accounted for roughly 27% of Tesla China’s total Model Y sales, despite the variant carrying a ~28% premium over the base RWD Model Y that is estimated to have dominated last year’s mix.

As per industry watcher @TSLAFanMtl, this suggests that Tesla China’s sales have moved towards more premium variants this year. Thus, direct year-over-year sales comparisons might miss the bigger picture. This is true even for the regular Model Y, as another premium trim, the Long Range RWD variant, was also added to the lineup this 2025. 

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November 2025 momentum

While Tesla China’s overall sales this year have seen challenges, the Model Y and Model 3 have remained strong sellers in the country. This is especially impressive as the Model Y and Model 3 are premium-priced vehicles, and they compete in the world’s most competitive electric vehicle market. Tesla China is also yet to roll out the latest capabilities of FSD in China, which means that its vehicles in the country could not tap into their latest capabilities yet. 

Aggregated results from November suggest that the Tesla Model Y took the crown as China’s #1 best-selling SUV during the month, with roughly 34,000 deliveries. With the Model Y L, this number is even higher. The Tesla Model 3 also had a stellar month, seeing 25,700 deliveries during November 2025.

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