Glamping with Tesla's Cybertruck and trailer concept

Glamping, a word that combines the terms, glamour and camping, refers to going to campgrounds but having the amenities normally present in a hotel.

Tesla has an interesting Cybertruck trailer concept. It's a large trailer about the size of a tiny house. It’s a nice looking trailer and it reflects the angularity and aerodynamic shape of the Cybertruck. In Cybertruck patents, Tesla shows the Cybertruck pulling a weight of 20,000 pounds, however the official Cybertruck specs say it can tow more than 14,000 pounds. I interpret that as a max weight of between 14,000 pounds and 15,000 pounds.

Now, remembering what we learned in high school physics, you’ll recall that how much weight a truck can tow has three components. The truck has to overcome rolling resistance, air resistance, and gravity. Now rolling resistance increases gradually depending on both the weight of the trailer and the speed you’re trying to tow it. It’s a linear increase. While there’s more rolling resistance at highway speeds than there is at parking lot speeds, it’s not all that much more.

Then there’s air resistance. That’s not related to the weight of the trailer at all. Air resistance is related only to the cross sectional area of the trailer, the aerodynamic shape of the trailer, and the speed of the tow. Air resistance increases as the square of the speed, so that’s a much more significant factor at highway speeds than at low speeds, but it has absolutely nothing to do with the weight of the trailer.

A few months ago, Ford came out with a publicity stunt involving a prototype electric Ford F-150 Lightning towing a million pounds of railroad cars when they were empty. Then they loaded one and a quarter million pounds of pickup trucks into the railroad cars, and the electric Ford towed all that, too (you can watch the full video below).

It was supposed to demonstrate something. All it demonstrated is that Ford likes to lie to people who don’t remember the physics they learned in high school.

The tow was done at slow speeds on steel rails with steel-wheeled railroad cars. Of all the land vehicles currently in use in the US, trains have the least rolling resistance. Maglev trains have less rolling resistance, but they’re not in use in the US. And anyway, maglev trains don’t roll. They float on a magnetic field. So all the electric Ford had to do was overcome a certain small rolling resistance. Admittedly, you or I would have been unable to start those train cars rolling by pulling or pushing by hand, but probably any pickup truck could have done it. It didn’t have to be a Ford.

The reason there’s a weight limitation for towing a trailer is that roads aren’t level. On hills, there are two considerations. The truck needs to be able to tow the trailer up any hill it might come across, and it has to be able to control the trailer when going down any hill it might come across. So if Tesla says the Cybertruck is rated for 14,000 pounds, then it really shouldn’t try towing 20,000 pounds even if that seems possible on level ground or mild hills. But there is a way around this limitation in the era of electric vehicles.

What I’m going to tell you does not come from Tesla, or any knowledgeable source. It comes strictly from my imagination so take it with a grain of salt.

The way the Cybertruck can safely tow a load that’s higher than its rated maximum towing weight is if the trailer has its own batteries and its own electric motor(s). There would, of course, have to be coordination. The trailer would have to respond to the truck driver’s control input, but that’s not difficult to arrange. If the trailer had batteries and motor(s), the range between recharges would not be degraded by towing. If the trailer could be recharged separately from the Cybertruck by a second Supercharger stall, then the length of time to recharge wouldn’t be prolonged.

Now let’s talk about what the trailer could include. I looked up the weight of a standard 30-foot travel trailer. The weight averages around 5,800 pounds. So that leaves plenty of room for amenities. The trailer could expand, for example. It could expand upward when parked, or sideways. Lots of travel trailers do that. So instead of being 30 feet by 8 feet, it could be twice that. Perhaps it could expand sideways on both sides, That would make it 30 feet by 24 feet.

Add to that interior room, an extra roof to cover an outdoor patio, another 8 feet by 30 feet. Cover all that roof with solar panels, and you’d have lots of electricity while you were at the campground. Excess solar electricity created in the daytime would be stored in the trailer’s batteries at night.

Then there are other amenities. In addition to the normal water tanks for drinking, bathing, and other cleansing purposes, there could be a hot tub for two. That would hold 150 gallons of water, 600 pounds. Tesla is good at making heat pumps. Heat pumps can be used to heat or cool the trailer depending on the outside air temperature. If the trailer is parked near a stream or a lake, the heat pump might be able to exchange heat or cooling with the body of water if that would be more energy-efficient than exchanging heat or cooling with the outside air.

While traveling, there should be enough outside video cameras so that the driver would not have blind spots next to or behind the trailer. These should sync with the Cybertruck’s display screen.

The Ford F-150 Lightning has a helpful feature for hooking up the truck to a trailer. The driver first cranks up the trailer’s hitch to the proper height. Then he drives the truck to the front of the trailer so he can see the trailer hitch in the rear camera display. At that point, the truck itself backs up until the truck’s trailer hitch is properly aligned with the trailer’s hitch receptacle. Tesla should do that for the Cybertruck in a software update.

Finally, there should be Internet access via Starlink.

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Tesla Update 2025.20 Tear Down Reveals Grok Personalities and Icons

@greentheonly on X

While most automakers are adding basic and un-integrated AI assistants to their vehicles, Tesla appears to be working hand-in-hand with xAI to build out an entire cast of characters for in-vehicle Grok. In the latest dive into Tesla’s firmware, Tesla hacker @greentheonly uncovered a few new details about the upcoming Grok feature.

This discovery, part of a larger batch of changes found in Tesla update 2025.20, also offers a hint at the hardware required for the Grok.

A Dozen Groks

While we knew from previous firmware teardowns that Tesla was adding various Grok personalities to the vehicle UI, this update introduces a new one called Language Tutor, which may allow users to learn and practice a new language. 

These are the different personas that will be included in Grok:

• Argumentative

• Assistant

• Conspiracy

• Doctor

• Kids’ Stories

• Kids’ Trivia Games

• Meditation

• Motivation

• Romantic

• Sexy

• Storyteller

• Therapist

• Language Tutor

• and the Grok Classic - Unhinged Mode

Release Date

Icons for these personalities have been added to the firmware for the first time, leading us to think Tesla is getting close to releasing the feature. However, even after the feature is developed and included in vehicle software, Tesla may only enable it selectively — such as for select employees for testing.

Grok is expected to be one of the largest vehicle features added via a software update, so it’ll be a big deal when it’s finally released. While we know more or less what to expect from Grok, what we don’t know is about vehicle requirements or whether it’ll require a subscription beyond Premium Connectivity.

Grok Requirements

While subscriptions required are anyone’s guess, vehicle requirements may be a little clearer now, thanks to Green’s discovery that Grok is only being added to AMD-based vehicle software builds.

Unfortunately, this likely means that older, Intel-based vehicles will not receive Grok support, at least for the time being. When Tesla introduced a voice assistant in China, they also started off with AMD-only support but later added Intel support, so it’s possible that the same could happen with Grok.

Energy Saving

Green also found a new undocumented navigation feature in 2025.20.3. This one focuses on leveraging Tesla’s vast amounts of data in an interesting way and offers drivers proactive advice to save energy on a well-traveled route. 

In the Energy App, your vehicle will display, “This route is typically driven at X mph. Slow down by Y mph to save Z% for the rest of this trip.’ 

As you can see in the photo below, Tesla recognizes that vehicles typically drive at 66 mph on the route being driven and offers the driver the option to go five mph slower to save 1% of range. While this example doesn’t provide much incentive to slow down, it could be useful for someone with a low state of charge or if the savings are more significant.

The new line in the Energy App

Not a Tesla App

In the future, Tesla could even use this, alongside the road surface data they’re gathering, to help plan routes for Robotaxi and Unsupervised FSD.

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NHTSA to Streamline Approvals for Control-Free Vehicles Like Tesla’s Cybercab

Not a Tesla App

In a letter to industry, the National Highway Traffic Safety Administration (NHTSA) has announced that it is overhauling its approvals process for vehicles designed without human controls.

The change addresses a regulatory bottleneck that has slowed down American companies like Tesla from deploying purpose-built Robotaxis, rather than relying on using traditional vehicles with steering wheels and pedals. The policy shift is outlined in a letter posted to the NHTSA’s website, which you can find here.

Reducing Approvals From Years to Months

Under the existing rules today, any vehicle that is built without a steering wheel or brake pedals must receive a special exemption from federal safety standards.

Obtaining exemptions for a particular vehicle was a time-consuming process for both the companies requesting exemptions and the NHTSA. The process was often a black box—nobody knew when an exemption might be granted, and approvals could take years.

The NHTSA, under the new administration’s guidelines for autonomous vehicle development, is now committed to streamlining this process. The agency will be implementing a new, faster approach immediately for receiving exemptions for autonomous vehicles without standard controls. The NHTSA expects decisions on exemption requests to be determined within months rather than years. 

Accelerating the Cybercab

This change has massive implications for Tesla, which is banking on the production of the simplified and easy-to-maintain purpose-built Cybercab. The Cybercab is developed from the ground up as an autonomous Robotaxi and will be one of the key beneficiaries of this move by the NHTSA.

Knowing that a final design won't be caught in a multi-year regulatory limbo provides a level of certainty that has been missing. It allows Tesla to confidently plan the manufacturing, development, and deployment processes without worrying whether the project will get stuck in regulatory approvals.

According to the letter, the agency will publish its improved instructions for the streamlined process "shortly." With Tesla already having begun Cybercab pre-production and the goals for its deployment as soon as late 2026, there’s still a lot to be done to make autonomy a part of Tesla’s new sustainable abundance mission statement.

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