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Discussion Starter · #1 · (Edited)
Rivian is working on an extended cab version of the R1T pickup it seems, as seen in a new winter testing article from the automaker. Some interesting observations so far include how much more angled the rear door is, position of the rear door handle, the shorter wheelbase and others. If you notice anything else, include it below.

Tire Car Automotive parking light Wheel Land vehicle
 

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I don't come to that conclusion looking at the above picture or pics in that article. That would seem to go against every other speculation regarding the 5 EVs Rivian intends to make by 2025. R1T, R1S and rally car being the first three. Seems most of the speculation I've read (and personally heard directly from the R1S team lead albeit over a year ago) are shorter/smaller versions of the R1T and R1S. Unless you're speculating this may be a future "option" to the current R1T?

Now, I've read some reports / blogs with pics regarding the upper lift-gate on the R1S has been redesigned along with the changes to the lift-gate on the R1T. As part of that people have also noticed the rear quarter panel extends further behind the rear wheels along with the wrap around bumper looking longer.
 

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I'm more interested in that black box that sits in the bed of the truck on the right. That looks like (hopefully) the removable extension battery that they filed a patent for. Would make sense to test a external battery in these cold conditions. One can hope
 

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Looks to me (at least in the picture above) that the "black box" is just the tonneau cover opened part way. Is there another pic you're seeing?
 

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Rivian is working on an extended cab version of the R1T pickup it seems, as seen in a new winter testing article from the automaker. Some interesting observations so far include how much more angled the rear door is, position of the rear door handle, the shorter wheelbase and others. If you notice anything else, include it below.

View attachment 1563
Makes sense to me, seems like for people wanting a shorter truck to build an extended cab and plop it on the R1S skateboard is a simple low effort/expense solution. 14 inch shorter wheelbase and 12 inch overall length difference seems to fit what is missing from the door.
 

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Discussion Starter · #7 ·
Makes sense to me, seems like for people wanting a shorter truck to build an extended cab and plop it on the R1S skateboard is a simple low effort/expense solution. 14 inch shorter wheelbase and 12 inch overall length difference seems to fit what is missing from the door.
It would also mean a cheaper R1T, by as much as 15% going off how current pickups are priced.
 

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Discussion Starter · #9 ·
InsideEVs did a piece on this new cab spotting.

Or could it just be a chopped body tossed on the R1S chasis? Considering there are some tweaks being made to the R1S tail, maybe they oped to just chop up an R1T body to fit on the R1S chasis for testing? Not every mule is a new vehicle.
That's possible and it was brought up in an article that linked to this other thread on the extended cab.

"From the image in question, it’s impossible to tell if the smaller cab also features a longer bed. Although if it is in fact sitting on a smaller wheelbase, a longer bed seems unlikely. According to specs on Rivian’s website, the current wheelbase for the R1T is 135 inches while the R1S is 121 inches.

Rivian R1T Extended Cab, or R1S dynamic testing
Again, there is no confirmation that this could be a smaller version of the upcoming R1T pickup from Rivian. Some forum readers saw the shorter wheelbase and thought perhaps the automaker rigged together a smaller EV using R1T components. This could simulate a production version of its R1S SUV for winter testing.

This seems possible but unlikely, given Rivian has multiple R1S prototypes, even if the automaker hasn’t driven a production version of the assembly line yet.

What’s perhaps more interesting are recent comments from Rivian’s CEO, RJ Scaringe. He speaks about future variations of the R series models that will be smaller and more affordable. Here’s what Scaringe said last week in an interview with Motor Trend:

The R1 family of vehicles comprises the halo products, but lower-priced models are being planned. Scaringe says there’s a whole slew of products to follow and the naming convention will continue, which means next up would be an R2 series of at least two smaller electric vehicles to coincide with the smaller platform they will ride on, then another platform for R3.
Rivian has not shown any of the future products, but the company is oriented to adventure-type trucks and SUVs. Executing means additional production capacity, different form factors, and different price points and markets, Scaringe says. It is reasonable to assume similar body styles but in different sizes.
So clearly, Rivian has smaller variations in the works, but is the company this far along already?

Electrek’s Take
While this could be exciting and welcome news for future Rivian drivers, it’s still too early to truly get excited. Rivian has yet to confirm any upcoming models apart from its upcoming R1T and R1S this summer. The other Rivian EVs have been spoken about vaguely, as you can see above.

It’s still interesting to see potential variations Rivian may or may not be working on, even if it does require some imagination at this point, especially to suit the preferences of all customers, as some will prefer a crew cab, some a longer bed, etc. Rivian has yet to respond for any comments, but we will keep an eye on things as these move forward.

Lastly, big shoutout to the Rivian forums for spotting this variation. Although everything remains unconfirmed and speculative, there might be something cool there. Check back with our Rivian guide for future news like this.
 

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The Drive reached out to Rivian and here's what they told them.

A Rivian spokesperson told The Drive that the automaker built this particular example as a test mule to gather data for the R1S electric SUV. They explained that since this round of testing was completed "before we had R1S bodies on the [production] line," an SUV body couldn't simply be fitted to the skateboard platform. Because the standard R1T shell is built to fit on a wheelbase of 135 inches, it was just too large to plop on the shorter 121-inch wheelbase of the R1S. With the help of a little fabrication, the R1T extended cab test mule was born.

Rivian told us that there's "nothing to see here on the extended cab front," so while such a variant of the R1T technically exists, it seems like it won't make its way to market, at least initially.


 

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The Drive reached out to Rivian and here's what they told them.

A Rivian spokesperson told The Drive that the automaker built this particular example as a test mule to gather data for the R1S electric SUV. They explained that since this round of testing was completed "before we had R1S bodies on the [production] line," an SUV body couldn't simply be fitted to the skateboard platform. Because the standard R1T shell is built to fit on a wheelbase of 135 inches, it was just too large to plop on the shorter 121-inch wheelbase of the R1S. With the help of a little fabrication, the R1T extended cab test mule was born.

Rivian told us that there's "nothing to see here on the extended cab front," so while such a variant of the R1T technically exists, it seems like it won't make its way to market, at least initially.


Once they’re done they could auction these test mules on eBay right? How do you think they would get on the extended cab? 😂
 

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Once they’re done they could auction these test mules on eBay right? How do you think they would get on the extended cab? 😂
Do you really want something that was beat to hell? :)
I have seen some early photos of the early assembly of parts that were spray painted with a bright color. My guess is to mark those parts so they don't end up being used else where or re-used. And to hide 'marks' in test vehicles.
 

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Do you really want something that was beat to hell? :)
I have seen some early photos of the early assembly of parts that were spray painted with a bright color. My guess is to mark those parts so they don't end up being used else where or re-used. And to hide 'marks' in test vehicles.
Well, it's an auction. 5k for sure I would pay, maybe 10k. My guess is some people would pay more so I don't see myself wining it☹
 

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No manufacturer will sell their test mules. There are many reasons for this. There is probably at least a few things about them that are not street legal, for example. They also may not have every piece that the production vehicles do. Servicing them would be a nightmare, and no manufacturer wants the liability.

Manufacturers keep them as long as they provide value to them, then they destroy/disassemble/deactivate them. Even GM destroyed most of the EV1 vehicles, despite them being actual production cars that were driven by customers, and the model having historical significance. The handful that weren't destroyed had their powertrains removed/deactivated and they were donated to museums and schools with strict agreements that they could never be reactivated or driven.
 

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Once they’re done they could auction these test mules on eBay right? How do you think they would get on the extended cab? 😂
It would be fun as a race truck and something to mess around with off-road but Rivian can't risk selling them to someone else.
 
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