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Heavy-duty BEVs like the Tesla Semi won’t work—biofuels a better option: Bill Gates
Bill Gates’ recent post about electric vehicles contained a number of interesting insights about his views on electrification. While the Microsoft co-founder noted that EVs present an ideal solution for short-haul travel, he argued that battery-electric vehicles will probably never be a practical solution for heavy-duty machinery like 18-wheelers. This makes vehicles like the Tesla Semi inherently flawed, at least according to the tech visionary.
Gates explained in his post that EVs do not work as long-haul vehicles like semitrailers because batteries are big and heavy. According to Gates, this results in an inherent problem, since moving more weight would require batteries, and more batteries would result in additional weight. Thus, even if electricity is drawn from zero-carbon sources, and even with innovations in battery tech, there are simply things that batteries would not be best at.
“The problem is that batteries are big and heavy. The more weight you’re trying to move, the more batteries you need to power the vehicle. But the more batteries you use, the more weight you add—and the more power you need. Even with big breakthroughs in battery technology, electric vehicles will probably never be a practical solution for things like 18-wheelers, cargo ships, and passenger jets. Electricity works when you need to cover short distances, but we need a different solution for heavy, long-haul vehicles,” Gates wrote.
With this in mind, the tech visionary explained that cheap alternative fuels would be a much better option than all-electric vehicles for long-haul travel. Gates noted that there are several types of these alternative fuels, though he took a particular focus on biofuels and electrofuels. The Microsoft co-founder explained that biofuels today are far different than the biofuels of the past such as ethanol. He added that some biofuels could be drawn from plants that aren’t grown for food, and some could even be used in existing engines without requiring any modifications. However, challenges remain with the rollout of biofuels for long-haul travel.
“I’m optimistic about these biofuels, but it’s too soon to think about replacing gasoline and other fossil fuels with them. Research on advanced biofuels is still underfunded, and they aren’t ready to be deployed at the scale we need. We need a lot more innovation before they become a realistic, cost-effective option for long-haul transportation,” the Microsoft co-founder wrote.
Gates also discussed electrofuels, which combine the hydrogen molecules in water with the carbon in carbon dioxide to create a liquid fuel that could work in existing internal combustion engines. According to the tech visionary, electrofuels have a lot of potential, but they remain very expensive, costing about 3 to 7 times the price of fossil fuels. The billionaire also noted that for electrofuels to work, the electricity used to create them would need to come from zero-carbon sources.
Interestingly enough, Gates’ recent post on electric vehicles did not mention Tesla at all, nor any of the company’s projects. That being said, the tech visionary’s remarks do suggest that he does not believe that the Tesla Semi could be a viable alternative to fossil fuel trucks. Gates’ stance would likely be put to the test soon enough, however, since Tesla CEO Elon Musk has stated that it is now time for the Semi’s volume production to start. This suggests that Tesla has finalized the design and specs of the Semi, whose production version will likely meet or even exceed its impressive specs, which were announced over two years ago.

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This Tesla safety engineer just left after over 14 years
The crash engineer didn’t disclose any specific reasons for his departure. “I have decided now is the time to move on.”

A key Tesla safety engineer has departed from the company, as shared earlier this month, following nearly a decade and a half spent working across three of the automaker’s locations.
In a post on LinkedIn last week, Tesla’s Principal CAE Crash Safety Engineer, Petter Winberg, announced his departure from the company after working there for over 14 years. Winberg played a major role in Tesla’s efforts to make its vehicles some of the safest out there, starting as a Senior Tech Specialist in 2011 and slowly getting promoted to his current position.
In his position, Winberg worked on crash architectures for the Cybercab, Semi, and future vehicles, along with the Model S, Model X, Model 3, and Model Y, and developing specific accident architectures once Giga Casting production came into play. The executive’s full departure announcement reads as follows:
Elon, 2011: “I want Tesla vehicles to be the safest on the planet” Me: “Challenge accepted”
Having developed Model S, S-DM, X, 3, Y, Y-SP as well as future crash architectures, I have decided now is the time to move on. Thank you Tesla, keep crushing it! What an incredible team, I will miss you all.
READ MORE ON TESLA SAFETY: Tesla executive responds to claims of high fatal accident rate
During his time at Tesla, the engineer worked at the company’s engineering headquarters in Palo Alto, California, before moving to the company’s nearby Fremont factory, then finally landing at the automaker’s Gothenburg, Sweden facilities, where he has served in his current position since January 2020. Prior to this, Winberg also worked at Volvo, Saab, Ford, and Volvo.
The post also elicited a handful of comments from colleagues, including one commenter who called Winberg the “master of crash simulations,” and multiple others who praised him for his guidance and knowledge of the subject.
Tesla has also been heavily focused on making its vehicles safe since the early days, as Winberg points out.
As one example in October, Tesla VP of Vehicle Engineering Lars Moravy reiterated this point by highlighting both the company’s active and passive safety features included in the Model Y and other vehicles. Moravy detailed that, while features built-in for the Autopilot and Supervised Full Self-Driving (FSD) systems provide active safety features meant to help prevent crashes, even if “the worst occurs, [Tesla drivers] will be protected by the best passive safety cars on the planet.”
The company’s vehicles have also earned top safety ratings across four different continents at this point, most recently including a five-star safety rating for the Cybertruck from the top auto regulator in the U.S.
Over the last several months, Tesla has also faced executive and high-profile engineering departures a handful of times, as can probably be expected from most companies of its size.
Some examples include the departure of Safety Policy Lead Marc Van Impe and Chief Information Officer Nagesh Saldi in October, VP of Finance and Business Operations Sreela Venkataratnam in August, and both SVP of Powertrain and Energy Engineering Drew Baglino and VP of Public Policy and Business Development Rohan Patel in April, to name just a few.
This former Tesla engineer now heads a federal tech department
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Watch Tesla’s FSD tackle water cup challenge, dirt roads in China
How does Tesla’s Full Self-Driving face off against competitors in China when it comes to smoothness and scalability?

Tesla’s Full Self-Driving (FSD) started going out for testing in China last month, representing the first market outside of North America to get the software. Amidst competition in the automated driving space from a number of other Chinese companies, Tesla’s FSD seems to be impressing in early reviews, with recent reviews highlighting both the software’s smoothness and its ability to adapt and perform well on non-traditional roads.
In a Saturday video originally posted by user 王船船 on Douyin, the Chinese version of TikTok, a driver utilizes the Supervised FSD system while performing what’s called the “water challenge,” in which a cup of water is balanced on the driver’s side window ledge to see if driving is smooth enough to avoid spilling.
The drive spans a little more than four minutes, and the system manages to make it through without the water spilling in any substantial quantities. The driver mostly remains on city streets, but you can see a handful of quick, unexpected stops, turns, and other maneuvers that one might expect to make the cup tip completely.
The video was also reposted on X by Tesla’s main account, with the company highlighting the system’s “maximum smoothness” as demonstrated in the video. Tesla VP of AI Ashok Elluswamy also reposted the video, saying in a separate follow-up post that “FSD’s been prepared for this one.”
Maximum smoothness https://t.co/p4aM3StgRk
— Tesla (@Tesla) March 15, 2025
Although Tesla’s FSD system didn’t have access to real-world driving data from the company’s vehicles at the time of its launch in China, Elon Musk recently explained that the company used publicly available video from the internet to help pre-train FSD for Chinese streets and traffic laws.
In addition to helping with city streets, Tesla has explained in the past that its camera- and video-based FSD neural network training makes the system easily scalable to multiple countries, fringe traffic cases, and even less traditional roads.
As another example of this in China, FSD testers also took to some dirt roads last week, showing just how well the software seems to handle some seemingly-deep and super-narrow back roads. You can see excerpts from this video below, or check out the full 25-minute version from user AE68 on Douyin.
Tesla FSD testers in China do seem to be built different. That’s some REALLY rural roads!
— TESLARATI (@Teslarati) March 14, 2025
READ MORE ON TESLA CHINA: Cheaper Tesla Model Y may launch in China
Tesla’s FSD in China amidst local competition
Tesla officially launched a localized data privacy version of FSD Supervised in China last month, The launch came amidst a headstart from multiple competitors in the autonomous driving space, including from Chinese automakers Baidu, Huawei, and still others.
The Avatr 11 electric vehicle (EV), a jointly created project from Changan New Energy, CATL, and Huawei, was recently seen being tested by Out of Spec’s Kyle Conner. The system uses Huawei’s latest automated driving system technology, Qiankun ADS 3.2, which Conner recently said was “the best driver assistance he’s ever experienced” in a recent review on his trip to China.
You can see this video and an additional video from Conner and Out of Spec discussing the emerging autonomous vehicle industry in China below. It’s also worth noting that both of these were released just a few weeks before Tesla’s first version of FSD launched in the country.
The Best FSD System In China! 1 Hour Drive Using Huawei Qiankun ADS 3.2 Installed In Avatr 11 (2/1/25)
The EV Industry Isn’t Ready For China’s FSD Breakthrough (2/2/25)
Elon Musk clarifies the holdup with Tesla Full Self-Driving launch in Europe
Elon Musk
Elon Musk roasts owners of this car brand after another Tesla vandalism incident

Elon Musk roasted owners of one specific car brand after yet another incident of a Tesla being vandalized, this time in New York.
Tesla owners have had a bit of a target on their backs in recent months as Musk, CEO of the company, has joined forces with U.S. President Donald Trump in an effort to eliminate excessive and unneeded government spending in the new Department of Government Efficiency, or DOGE.
Due to Musk’s bold personality and unfiltered political beliefs, he has gained plenty of critics in the last few months. Tesla owners are being targeted as a result, seeing their vehicles be vandalized on nearly a daily basis.
Tesla-owned showrooms across the country have also been the target of some attacks, as one was even damaged in a series of shootings, another lit on fire by a Molotov cocktail.
Nevertheless, Musk has continued to stand firm on his beliefs, and Tesla drivers are getting fed up with the amount of damage being done to their cars. In this particular instance, someone drew a swastika on the side of a New York City Tesla Cybertruck owner. He was able to confront the person who drew the offensive logo, an exchange that was caught on camera:
NEW: Leftist arrested after drawing a swastika on a Cybertruck belonging to a Jewish man in NYC.
The man saw the Cybertruck, got out of his Subaru & then drew the swastika.
He fled the scene without his car & came back an hour later where police were waiting.
The people… pic.twitter.com/F1wCl00tjV
— Collin Rugg (@CollinRugg) March 15, 2025
The video was shared on X, which grabbed the attention of Musk, who was sure to criticize the make of the assailant’s vehicle: a Subaru.
Musk said:
“Crazy people. Naturally, he drives a Subaru …”
Crazy people. Naturally, he drives a Subaru …
— Elon Musk (@elonmusk) March 15, 2025
The playful jab at Subaru drivers likely comes from the stereotype that those vehicles are usually driven by people with intense political and social beliefs. Facetious posts on Reddit claim that Subarus won’t operate without at least ten bumper stickers on them. Subaru’s past marketing and advertising campaigns have attracted those who are “outdoorsy,” Google’s AI description of the drivers states.
Musk has never held back and never will. In an interview with MSNBC, he said he will speak his mind and if his companies lose money because of it, “so be it.” One thing is for sure, Musk is not going to shy away from speaking or posting how he pleases.
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