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Tesla Semi nails big test,  BMW iX3 range impresses, Xpeng catches up to Tesla, and more

Tesla Semi nails big test, BMW iX3 range impresses, Xpeng catches up to Tesla, and more

Electrek Jun 05, 2026 47 min
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About this episode

Grave Vines becomes the proving ground for Tesla Semi, where the hosts highlight why steep descents are dangerous—especially when “brake failure happened”—and how regenerative braking can reduce brake wear. The conversation then shifts to EV range testing, with real-world results beating WLTP, plus a debate over SUV classifications. Tesla FSD contract wording and supervised access lead into sensor strategy comparisons versus Xpeng, and even Tesla camera-wiper and hotel-charging practicality.

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Car

Tesla Semi

"So I'm going to skip you the ads this week. [28.7s] We're going to talk about Tesla Semi that went through the Grave Vines, one of the tougher situations that can get for heavy trucking, and apparently it aced it."

The Tesla Semi is an electric big rig (heavy truck) made by Tesla. The hosts are talking about it handling a tough downhill route that’s hard on brakes and can be dangerous for heavy trucks.

Car

Bmw Ix3

"...wipers on Tesla vehicles. That's interesting. The BMW iX3 getting a real world range test out of Norway and..."

The BMW iX3 is an electric SUV made by BMW. People talk about it when they want to know how far it can go in real driving, not just in lab tests. Range can change with weather, speed, and driving style, so real-world tests are useful.

Place

Great Vines

"So if you've ever been to the [106.6s] Great Vines, north of Los Angeles in California, a very common site is a lot of trucks just slowly climbing on the side of the road on the right lane is it's extremely difficult on on heavier vehicle."

The “Great Vines” is a tough downhill road area in California near Los Angeles. The hosts mention it because it’s especially hard on big trucks going downhill.

Term

brake failure

"And it's just it can be a dangerous situation on the way down also, because you know, [131.0s] brake failure happened."

Brake failure means the brakes stop working properly. On steep downhill roads, that can be really dangerous for big trucks because they need the brakes continuously to stay under control.

Term

embankments designed specifically for trucks

"And it's one of the places where you have you see a lot of those [142.1s] what they call them the place where the trucks literally crash into like a bank of sand. There's a name for that. But they're there are [148.2s] embarkments designed specifically for trucks to just you know, if you're a brake brake, you have to go through that."

These are special roadside safety areas for runaway trucks. If a truck can’t slow down, the design helps it stop more safely than crashing into something else.

Place

Grapevine

"this is my over the last few weeks, specifically in the Great Vine... One other thing about rejenning down hills, especially as big as the grapevine is like 11 of those trips will just like destroy some brakes."

The Grapevine refers to the steep mountain pass route used by trucks in California, known for sustained climbs and long descents. Because it includes extended downhill braking demands, it’s a tough real-world test for how well a vehicle manages grades and brake/energy management.

Term

6% grade

"but it said that they run through a 6% grade for five miles. So that's the thing with the the grades are not, you know, some of the grades are pretty steep, but they also very long."

A “6% grade” means the road is noticeably sloped—about 6 feet of rise for every 100 feet traveled horizontally. For trucks, that kind of slope changes how hard the truck has to work uphill and how much braking is needed downhill.

Term

diesel trucks

"One other thing about rejenning down hills, especially as big as the grapevine is like 11 of those trips will just like destroy some brakes. Like because you know, diesel trucks have no other way to stop besides, you know, old fashioned brakes."

“Diesel trucks” are the traditional big-rig trucks that run on diesel fuel. On long downhills they usually have to slow down using the regular brake system a lot.

Term

regen

"So the fact that Tesla can just regen all that they don't even need to worry about brakes, that's saving them a ton of money on brakes as well."

“Regen” means the truck slows down by turning its electric motor into a generator. Instead of wasting all that downhill energy as heat, it recaptures some of it and also helps the brakes last longer.

Term

full self driving contracts

"we received reports of people having issues exiting their full self driving contracts. So that's that's not exactly you have heard that before."

Tesla sells software features as a subscription or one-time purchase. In this story, some owners say their “Full Self-Driving” purchase isn’t showing up correctly in their account, so they can’t access it.

Car

Tesla Model 3

"So Oliver is actually is a 2018 model three owner. So hard word three. And kind of got fed up with the hardware three situation with Tesla."

The Tesla Model 3 is an electric car. Here, the discussion is about the software subscription owners buy—Full Self-Driving—and how problems can show up with the contract in the car’s account.

Term

hardware three

"And kind of got fed up with the hardware three situation with Tesla."

“Hardware 3” is the name Tesla uses for the computer in the car that runs self-driving features. Here, the host is saying an owner got frustrated because the promised future capability didn’t match what was expected for their car’s hardware.

Term

unsupervised self driving

"With the latest admission that unsupervised self driving will not happen on other word three."

This means the car would drive by itself without needing a person to watch and be ready to take over. The hosts are saying Tesla’s plans for that kind of autonomy have changed for some owners.

Term

FSD supervised

"But the more egregious thing here is that the Tesla didn't use the term supervised in 2019. That that term was introduced in 2024 with Tesla FSD."

“FSD supervised” is Tesla’s version of self-driving that still expects you to stay alert and supervise the car. The hosts say Tesla later changed the wording, and that mismatch is part of why some owners feel misled.

Term

FSD beta

"And this left move from like the FSD beta to FSD supervised wanted to remove the beta no said that and slowly over the course of 2024 2025, kind of reintroduce full self driving"

“FSD beta” was an early version of Tesla’s self-driving software that only some people could get. In this segment, they’re saying Tesla later rebranded or restructured it, which matters for what owners thought they were buying.

Term

full self driving supervised

"right now, full self driving supervised. And yeah, that's it now. Now obviously, it's a subscription"

Tesla has software that helps with driving. When it’s described as “supervised,” it means the car can assist, but you’re still expected to watch closely and be ready to take over. The episode is about how Tesla’s contract wording changed what owners thought they were buying.

Term

subscription

"right now, full self driving supervised. And yeah, that's it now. Now obviously, it's a subscription"

Here, “subscription” means you pay each month to keep using certain software features. The hosts argue that because it’s subscription-based, owners shouldn’t assume the car will automatically reach whatever higher capability was originally promised.

Concept

retroactively changed on the 2019 contract

"Now it's been retroactively changed on the 2019 contract to supervise. And"

This means the contract terms from 2019 were changed after people already signed. The hosts are saying that could change what owners thought they were paying for with FSD.

Term

motor vehicle purchase agreement

"because his wife bought the car with FSD, there's not a separate full self driving contract. The contract is in the motor vehicle purchase agreement."

This is the paperwork contract you sign when you buy a car. The episode says the FSD-related terms can be included in that contract, and that changes what owners can view or download later in the Tesla app.

Term

camera wipers

"Tesla has been granted a patent for camera wipers for for self driving vehicles. So it's something that we've been talking about for a long time that's been missing in a Tesla stack or for autonomy…"

These are wipers made for the car’s cameras. They help keep the camera lens clean so the car’s “eyes” work better, especially when it’s dirty or raining.

Term

autonomy

"…that's been missing in a Tesla stack or for autonomy is that, you know, the cameras get dirty…"

Here, “autonomy” means the car trying to drive itself. It depends on sensors like cameras working clearly.

Term

windshield wiper

"But for the front facing cameras… you have the same solution that is human does you have the windshield wiper. But for the side facing cameras, you just don't have that."

A windshield wiper is the part that clears rain and dirt from the front glass. The host is saying front cameras could be cleaned like that, but side cameras can’t.

Term

lens cleaning solution

"But now this is also another lens cleaning solution… a tiny little wiper with washer fluid for your camera lens specifically designed for the side cameras…"

This is a system that cleans the camera lens. Cleaner lenses help the car “see” better and make fewer mistakes.

Term

ultrasonic wiper

"Wasn't there a patent for like an ultrasonic like wiper kind of thing? If I remember correctly, it was actually a laser system."

An ultrasonic wiper is a windshield-cleaning idea that uses very high-frequency vibrations. Instead of just wiping with rubber blades, it tries to help loosen and remove grime more effectively.

Term

WLTP

"They do these yearly, well by yearly, a summer and then a winter test that are always super useful for each vehicle to try to get a mainly comparing the real world range with their WLTP."

WLTP is a standardized test that estimates how far a car can go on a full charge. It’s done in a controlled way, so the real-world range you get can be higher or lower.

Term

air records

"while it didn't break all the records, mainly not the elusive air records at 517 miles, 833 kilometers, it did break the SUV record now with 485 miles of range, 781, which I think is also longer than their WLTP."

The hosts are talking about special range record attempts where the car is set up to be as aerodynamic as possible. Those tests can produce higher range numbers than normal driving.

Car

Lucid Gravity

"So top 10. The second was the Lucid gravity. Also, Lucid still always on top when it comes to efficiency, 720 kilometers, 447 miles."

Lucid Gravity is an electric SUV from Lucid. Here it’s mentioned because it has a high estimated range number compared with other EVs in the same list.

Car

Mercedes-Benz CLA

"Mercedes is also not too far behind with the CLA at 675 and the GLC at 665. You have the Chinese automakers up there too with X9 at just over 400 miles, the Polestar 3 at 373 miles, 601 kilometers."

Mercedes-Benz CLA is a Mercedes model line that’s usually considered a smaller car, not an SUV. The hosts are arguing about whether it really belongs in an “SUV” range ranking.

Car

Mercedes-Benz GLC

"Mercedes is also not too far behind with the CLA at 675 and the GLC at 665. You have the Chinese automakers up there too with X9 at just over 400 miles, the Polestar 3 at 373 miles, 601 kilometers."

Mercedes-Benz GLC is a Mercedes luxury SUV. In this segment it’s mentioned as part of a comparison list of EVs with long range numbers.

Car

Polestar 3

"You have the Chinese automakers up there too with X9 at just over 400 miles, the Polestar 3 at 373 miles, 601 kilometers."

Polestar 3 is an electric SUV. The hosts mention it because it has a long range number in their comparison list.

Car

Kia EV4

"Yeah, everything else is an SUV in there. No, the EV4, the EV4 is not an SUV."

The hosts mention an “EQ4” while discussing which cars count as SUVs in their test. The transcript doesn’t clearly identify the brand, so it’s hard to pin down the exact model.

Term

VLA

"done the same and quickly we're able to catch up to Tesla with FSD capabilities through their VLA system."

VLA here refers to a driving system that mainly uses cameras to understand the road. The point is that it’s trying to drive using vision, even if other sensors may still be used for safety.

Brand

XPENX

"XPENX is mostly aiming to a vision-only system, but at the same time,"

Xpeng is an EV maker. In this segment, they’re talking about Xpeng’s driver-assistance system and how it uses cameras, but still keeps other sensors for safety.

Term

ultrasonic sensors

"they still have a radar on them, still have ultrasonic sensors, things that Tesla removed."

Ultrasonic sensors are the “beep” style sensors that use sound waves to detect things close to the car. They’re often used for parking and low-speed safety.

Term

vision-only

"The answer was very interesting where the AI driving system is an end-to-end vision-only system much like Tesla."

“Vision-only” means the car mainly uses cameras to see what’s around it. The discussion is about whether cameras alone can handle safety, or whether radar still helps for emergency situations.

Term

radar

"they still have a radar on them, still have ultrasonic sensors, things that Tesla removed."

Radar is a sensor that uses radio waves to detect objects around the car. In this segment, it’s used to help with emergency braking and other safety features.

Term

sensor fusion

"I asked Xiaoming what's the situation around that? Do they do sensor fusion?"

Sensor fusion means combining data from different sensors so the car has a better picture of what’s happening. Here, they’re saying you might not need a complex combined system if radar can act as a backup safety layer.

Term

automatic and emergency braking

"Automatic and emergency braking, for example, a big one, still use radar."

Automatic/emergency braking is when the car detects a crash risk and brakes by itself. In this segment, they say radar helps make that work reliably.

Term

override

"it will override the AI system and applies the automatic brakes."

Here, “override” means the car’s safety system can step in and take over braking if it thinks a crash is unavoidable. It’s like an emergency backup that can act even if the main driving AI is confused.

Term

V14

"I thought the bet was specifically like beat Tesla V14, but apparently it was to beat Tesla Fsd at the beginning of the year, which was V13. Pretty convenient. And honestly, having tested the VLA-2, I think that's fair."

V14 is just a label for a specific update of Tesla’s self-driving software. Different versions can behave differently, so people compare them to see which one is better.

Term

V13

"it was to beat Tesla Fsd at the beginning of the year, which was V13. Pretty convenient. And honestly, having tested the VLA-2, I think that's fair. I think they've got up to be 13 pretty well."

V13 is another update number for Tesla’s self-driving software. The speaker is using it as a reference point to judge whether competitors are keeping up.

Term

neural net

"they also exclusively gave us the news that they are spending 300 million RMB, over 40 million a month just on training along their system, their neural net, their end-to-end AI system. That's impressive."

A neural net is an AI pattern-recognition system trained on lots of examples. In self-driving tech, it helps the car understand what it’s seeing and choose actions.

Term

end-to-end AI system

"they also exclusively gave us the news that they are spending 300 million RMB, over 40 million a month just on training along their system, their neural net, their end-to-end AI system. That's impressive."

An end-to-end AI system means the car’s computer learns driving behavior as one integrated process. Instead of using lots of separate rules, it tries to go from what it senses to what it should do next.

Term

advanced level-2 system

"I think it builds up to my point that I think these advanced level-2 system are going to be completely commoditized by the end of the year. I think Rivian, obviously, is working on its own. In China, you have BYD, XPAN, Xiaomi, you have all of them just working on similar stuff like that."

Level 2 means the car can do some driving tasks like steering and speed control, but you still have to watch the road and be ready to take over. “Advanced” just means it’s more capable than the simplest Level 2 systems.

Term

self-parking system

"No, and not when BYD is doing this on top of it all. That was the big news this week. Last year, we made a big deal when BYD took responsibility for the first time for its self-parking system. We thought this is a great direction."

A self-parking system helps the car park itself. You still supervise, but the car does the steering and control to get into the spot.

Term

liability

"probably the biggest benchmark, the biggest proof of milestone, of improvement in advanced driver system, is going to be taking liability for it, being responsible for it. Them doing that for the self-parking system, the first step. Now this week, they went further than"

Here, “liability” means responsibility if something goes wrong while using the car’s automated features. The speaker is saying a company taking responsibility is a sign they’re more confident in the tech.

Term

gut's eye system

"that for their gut's eye system, but more specifically for the navigate on autopilot [1528.7s] feature. ... BYD has an equivalent in China under its gut's eye system, [1560.1s] which they have gut's eye CBA with a different level of capability."

The “gut’s eye system” is BYD’s set of advanced driving features. The host is talking about how BYD plans to cover crashes for the first year to encourage people to try it.

Term

Navigate on the pilot

"Navigate on the pilot. Is there FSD? Tesla used to have a feature called navigate on the pilot, [1552.8s] which was a predecessor to FSD."

“Navigate on the pilot” is an older Tesla feature that helps the car drive along a planned route. The idea is that it’s an earlier version of the more advanced “Full Self-Driving” system.

Term

gut's eye CBA

"BYD has an equivalent in China under its gut's eye system, [1560.1s] which they have gut's eye CBA with a different level of capability."

“Gut’s eye CBA” sounds like BYD’s specific version or package of its advanced driving features. The host is saying it’s not exactly the same as Tesla’s FSD, but it’s meant to do similar kinds of driving help.

Term

no payout cap

"They will cover it all with no payout cap, or no need to get separate [1601.1s] insurance on top of it."

A “payout cap” is a limit on how much money coverage will pay for a claim. The host is saying BYD won’t set a maximum limit for the covered costs during the first year.

Term

lidar

"So with your current insurance system, they will cover everything for [1607.9s] the gut eye A and B, so the two top systems. I think those are the ones that have the [1611.6s] lidar in them."

LiDAR is a sensor that uses lasers to “scan” the world around the car and measure how far away things are. It helps the car understand its surroundings more precisely.

Car

Lexus LFZC

"So this is the Lexus LFZC. It was on Villa a few years ago, the Japan mobility t-shirt... Toyota or Lexus was very adamant that we actually bring this to production as soon as 2026... But this week, they announced that they killed it."

Lexus LFZC was a futuristic electric car idea from Lexus. The company planned to turn it into a real production EV, but they later decided to cancel that project.

Concept

dedicated platform for electric vehicles

"They're aiming to bring this to production... It's going to be the next dedicated platform for electric vehicles for Lexus... designed from the ground up."

A dedicated EV platform is a car “foundation” built specifically for electric cars. Instead of modifying an older gas-car design, it’s designed to fit batteries and electric motors efficiently.

Concept

company ride review

"So we decided to cancel the LFZC development project as part of a company ride review of the vehicle development project."

This sounds like an internal business review of the project. If leadership decides the plan no longer makes sense, they can cancel it.

Term

Tesla insurance

"Tesla could make a decent business case of bundling monthly FSD supervised and Tesla insurance with Tesla taking responsibility for any accidents while using FSD."

“Tesla insurance” here refers to Tesla’s insurance offering being bundled with FSD usage. The key point is how accident responsibility is handled when the car is operating in a driver-assist mode.

Term

destination charging program

"will you interview somebody at GM Energy? I think they should start a destination charging program."

A destination charging program is an effort to place EV chargers at non-highway locations—like hotels, restaurants, and parking lots—so drivers can charge while parked for hours. It’s different from fast-charging networks aimed at quick top-ups during road trips.

Term

bidirectional charging

"But it was more about the vehicle to everything situation, bidirectional charging."

Bidirectional charging means your EV can not only charge from a power outlet—it can also send electricity back out. That could let you use the car like a backup power source or share power with a building or the grid.

Term

vehicle to everything

"But it was more about the vehicle to everything situation, bidirectional charging."

“Vehicle to everything” is the idea that an EV can interact with more than just the charger. It can potentially share power or information with things like your home, the grid, or charging stations.

Term

AV charger

"And when choosing hotels, [2434.4s] I always look if there's an AV charger is there. If I'm driving, obviously, it's something that's become like second nature for me."

An “AV charger” in this context is basically a charging station you can use at a place you’re visiting or staying, like a hotel. The host is saying they look for it because it makes EV travel easier.

Car

Dodge Charger

"...n choosing hotels, I always look if there's an AV charger is there. If I'm driving, obviously, it's somethi..."

The Dodge Charger is a sporty car that’s built for quick driving. People might mention it in a conversation about charging because drivers often plan trips around where they can plug in and recharge. Even if you’re not charging at home, it helps to know what chargers are available where you stop.

Car

Rivian R1

"All right. Last question is frequent traveler 78749. Aren't you worried that the Rivian starts R2 without having been profitable with the R1 yet? I think they actually were like non gap accountable last quarter, right?"

Rivian’s R1 is the company’s main electric vehicle lineup (like the R1T truck and R1S SUV). The speaker is talking about whether that lineup was making money yet, which is a big deal for any EV company trying to grow.

Rivian R2
Official manufacturer press image
Car

Rivian R2

"All right. Last question is frequent traveler 78749. Aren't you worried that the Rivian starts R2 without having been profitable with the R1 yet?"

Rivian R2 is the next electric vehicle lineup after the R1. The host is basically asking: should Rivian move on to the next model before the current one is making money?

Term

growth margin

"I think they actually were like non gap accountable last quarter, right? For a few quarter, they were growth margin positive on the vehicle, not profitable as a company just selling the R1s."

Growth margin is a profitability metric that looks at how much margin a company (or product line) generates as it grows—often discussed in terms of whether revenue growth is translating into improving unit economics. In this segment, the host contrasts growth margin being positive for Rivian’s R1 with the company still not being fully profitable overall.

Term

non gap

"I think they actually were like non gap accountable last quarter, right?"

“Non-GAAP” means the company is using an adjusted way of reporting financial results, leaving out some items. The host is pointing out that the “profitability” claim depends on which kind of numbers you look at.

Car

Rivian R1S

"...cle, not profitable as a company just selling the R1s. Then the Volkswagen deal and the software revenu..."

The Rivian R1S is an electric SUV with room for more than two people. It’s significant because it’s one of the main vehicles Rivian sells, so discussions about the company’s success and future plans often reference it. It also connects to how the car’s software and updates are handled.

Term

level two chargers

"Mount Kisco has a lot of level two chargers in town to get online. They're public parking lots soon."

Level 2 chargers are EV chargers that charge faster than the basic ones you might use at home. They’re often installed in places like parking lots and hotels, so you can plug in overnight and wake up with more battery.

Term

destination chargers

"This is in the context of destination chargers charging as much as super chargers like hotels and stuff."

Destination chargers are EV chargers at places where you’re parked for a while, like hotels. They’re meant for charging while you’re there, not for fast in-and-out charging.

Term

super chargers

"This is in the context of destination chargers charging as much as super chargers like hotels and stuff."

Super chargers are the fast EV chargers you use when you need to add range quickly. They’re different from slower chargers you might use overnight at a hotel.

Term

contract L2 chargers

"Dan overseas says most hotels I've been to have contract L2 chargers at 50 cents per kilowatt hour."

“Contract L2 chargers” are Level 2 chargers that a hotel or property pays for and manages through an agreement. That usually affects whether they’re free, how much they cost, and who can use them.

Term

kilowatt hour

"Dan overseas says most hotels I've been to have contract L2 chargers at 50 cents per kilowatt hour."

A kilowatt hour (kWh) is the unit of electricity. When you see a price like “50 cents per kWh,” it means you pay based on how much energy your EV takes while charging.

Term

Tesla has some cool features, some cool connectivity features

"But yeah, Tesla has some cool features, some cool connectivity features, specificity for that, that makes them a great solution."

Tesla’s “connectivity features” are the app and in-car tools that help you find chargers and manage charging. It’s basically software that makes charging less of a hassle.

Term

level one

"you have overnight charging or any kind of buy with a level one sometimes. Yeah, yeah, it's better than nothing."

Level 1 is the slowest way to charge an EV, usually using regular household power. It’s better than nothing, but it won’t add as much range quickly as Level 2.

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