Aside from Tesla, the only other EVs I consistently see on the road are those from Rivian. I don’t think that’s a coincidence at all, especially after testing the R1T and R1S last year.
The 2026 Rivian R1S introduces a Quad trim that delivers an insane 1,025-hp performance from its four electric motors. If that’s not enough, it also gains a more future-proof NACS charging port that opens up access to Tesla Supercharger locations across the country, while an included CCS1 DC adapter lets you charge at other stations.
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(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)2026 Rivian R1S: SpecificationsSwipe to scroll horizontallyRow 0 – Cell 0
2026 Rivian R1S Dual Standard
2026 Rivian R1S Quad
Battery
92.5 kWh
140 kWh
Motor
Dual-Motor AWD
Quad-Motor AWD
0 to 60 mph
4.5 seconds
2.6 seconds
Range
270 miles
374 miles
Horsepower
533 hp
1,025 hp
Wheels
20-inches
22-inches
MSRP
$76,990
$121,990
Price Tested
N/A
$124,890
2026 Rivian R1S: Testing summary
(Image credit: Tom’s Guide / John Velasco)
I drove a total of 165.4 miles during my week testing the 2026 Rivian R1S Quad, resulting in an average efficiency of 1.85 mi/kWh. That’s quite low, though hardly surprising for a full-size luxury SUV. However, it still trails other similar models I’ve tested, such as the Cadillac Escalade IQ and Mercedes-Benz G 580.
Then again, I believe the weather played a critical role, as EV range is significantly impacted by the colder temperatures I experienced. In comparison, I tested the 2025 Rivian R1S during the springtime. Ultimately, this just confirms that the platform is less efficient during the wintertime.
Despite this, I’m happy to report that the new NACS (North American Charging Standard) port is a refreshing addition. It helped manage an average charging speed of 2.49 mi/hr via Level 1 charging at home — which is actually not too shabby considering the vehicle is packing a hefty 141 kWh battery pack.
Swipe to scroll horizontallyRow 0 – Cell 0
2026 Rivian R1S Quad
2025 Cadillac Escalade IQ
2025 Mercedes-Benz G 580
Price tested
$124,890
$99,915
$183,250
Total miles driven
165.4 miles
367.3 miles
356 miles
Average Efficiency
1.85 mi/kWh
2.9 mi/kWh
2.27 mi/kWh
Best long distance driving efficiency
2.2 mi/kWh
2.9 mi/kWh
2.45 mi/kWh
Best short distance driving efficiency
2.03 mi/kWh
2.3 mi/kWh
2.16 mi/kWh
Level 1 charging rate
2.49 mi/hr
1.88 mi/hr
2.74 mi/hr
2026 Rivian R1S: What I LikeBest-in-Class ADAS Capabilities
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(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
I cannot stress enough how Rivian is ahead of the pack when it comes to automating the driving experience. This is largely due to its outstanding Advanced Driver Assistance System (ADAS), officially known as the Rivian Autonomy Platform.
From the way it uses adaptive cruise control to maintain speed on the highway — applying smooth, necessary braking and acceleration — to how promptly it reacts to changing traffic conditions, this is the EV I trust most to handle the driving for me.
Headlights that react to the road
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(Image credit: Tom’s Guide / John Velasco)
(Image credit: Tom’s Guide / John Velasco)
One of the striking features of the R1S Quad are the stadium headlights on the front of the vehicle, which consists of two large vertically stretched pills with a horizontal light bar that runs across the front. Not only do they add a slick aesthetic touch that complements the R1S’ modern meets luxury look, but they’re also pretty smart.
That’s because it employs Adaptive Drive Beam technology that allows it to dynamically adjust the lighting, so that it does impressive things like beam light around other cars. For example, it’ll turn down the lights if there’s a vehicle in front of me or driving in the opposing lane — so that they’re not blinded. This doesn’t just benefit me as the driver, it helps others too.
Customizable driver settings
(Image credit: Tom’s Guide / John Velasco)
RAD Tuner is another new addition for the 2026 model, giving drivers more granular control over how the R1S handles. From adjusting the ride height to sharpening the acceleration for a more aggressive feel, it’s impressive to be able to fine-tune the vehicle’s handling to my exact preference.
This system is designed to provide better control during off-road driving and also serves as the gateway to the new Kick Turn feature, which helps the R1S perform much tighter pivots on loose surfaces. While it may seem similar to the Mercedes-Benz G 580’s “G-Turn,” Rivian’s version is more of a “trail-helper” that works while the vehicle is in motion, rather than just a stationary 360-degree spin.
Roomy seating space
(Image credit: Tom’s Guide / John Velasco)
As a people mover, the 2026 Rivian R1S Quad doesn’t disappoint, with three-row seating that accommodates up to seven passengers. The third-row seats provide added utility as they can be folded flat to significantly expand the trunk space. Small touches, like the plaid-pattern quilted stitching on the seats, give the cabin a cozy look and feel that’s rarely found in other vehicles.
Usable frunk space
(Image credit: Tom’s Guide / John Velasco)
Not all EVs feature a “frunk,” as they are often reserved for full-size SUVs and pickups like the Chevrolet Silverado EV and GMC Hummer EV. Even then, the space is sometimes barely enough for a few small packages. However, with the Rivian R1S, there’s plenty of room to stow several grocery bags with space to spare.
2026 Rivian R1S: What I Don’t LikeIt’s awfully expensive
(Image credit: Tom’s Guide / John Velasco)
When a vehicle is fully loaded, accelerates as fast as most super-sedans, and comes equipped with a dizzying array of tech, it shouldn’t surprise anyone that it comes at a premium. Yet, the $124,890 “as-tested” price for this trim still feels excessive.
That’s a staggering amount of cash to put down, though compared to the $163,000+ Mercedes-Benz G 580, it feels far more tolerable. Even so, I can’t overlook the fact that the R1S commands a price tag that most people will look at — and then instantly look away.
2026 Rivian R1S: Verdict
(Image credit: Tom’s Guide / John Velasco)
Apart from its extravagant cost of ownership, there’s very little fault to find with the 2026 Rivian R1S Quad. Who’s it for? Well, it’s for the driver who refuses to compromise. It’s for the person who wants an SUV that can rocket to cruising speed in an instant, a legitimate off-roading vehicle that can tackle just about any terrain, and of course, a three-row family vehicle that can shuttle people in comfort.
You can trade the power by choosing the Dual Standard ($76,990), which offers 90% of the same utility for less. However, if you want the absolute pinnacle of what an all-electric SUV should be like in 2026, the Rivian R1S Quad is the undisputed king.
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