TX 350 vs R1S
Brand preference aside, the TX 350 and the R1S are close competitors, both pitched at midsize luxury suv buyers. Across 4 compared areas, the R1S takes 3. The widest gap shows up under engine & performance.
At a glance
- Engine & Performance R1S wins
- Space & Practicality Tie
- Off-road & Towing R1S wins
- Safety & Tech R1S wins
- Engine & Performance1.2
- Off-road & Towing5.5
- Engine & Performance8.0
- Off-road & Towing9.3
Spec scores (0 to 10) are calculated from manufacturer specs against other models in the same class. See how the formula works. They are not reviews or user ratings.
Key Differences
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The R1S has 258 hp more power
A clear win for the R1S: 533 hp against 275 hp. Few specs in this matchup are as one-sided. The R1S’s extra output gives it more in reserve when you need to get up to speed.
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The R1S has 293 lb-ft more torque
Here the R1S pulls well ahead of the TX 350, with 610 lb-ft compared to 317 lb-ft. More torque means stronger pulling from low speeds, which you feel when accelerating from a stop or climbing grades.
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The R1S has 2,700 lb more towing capacity
The R1S doesn’t just edge this one; 7,700 lb against 5,000 lb is a lead you’ll feel. Towing ratings depend on configuration and equipment, so check the exact trim you’re looking at.
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The R1S has a bigger 15.6 in touchscreen
The R1S is slightly stronger on largest touchscreen. The gap, 15.6 in versus 14 in, won’t change your life, but it isn’t nothing. A bigger touchscreen makes maps and phone mirroring easier to read at a glance.
Design & Size
Size won’t decide this one: the TX 350 and the R1S have very similar dimensions.
Dimensions
| Spec | TX 350 | R1S |
|---|---|---|
| Length | 203.2 in | 200.8 in |
| Width (no mirrors) | 78.4 in | N/A (not specified) |
| Height | 70.1 in | N/A (not specified) |
| Wheelbase | 116.1 in | 121.1 in |
Engine & Performance
R1S leads
The engine & performance comparison is one-sided. The R1S leads where it counts. On the R1S, you get 258 hp more power. More power helps with merging, overtaking and climbing hills, especially with passengers and luggage on board. Net result: the R1S leads this part of the comparison.
Total system output
TX 350: 275 hp R1S: 533 hp Power is only part of the story; weight, gearing and torque delivery shape how quick a car feels.
Torque
TX 350: 317 lb-ft R1S: 610 lb-ft The R1S’s extra torque makes it more relaxed when fully loaded or towing.
Space & Practicality
Too close to call
This is a tie in all but name. On space & practicality, both deliver about the same. If space & practicality was going to be your tiebreaker, you’ll need a different one.
Off-road & Towing
R1S leads
This is one of the R1S’s strongest areas. On off-road & towing, the TX 350 falls well short. The R1S comes with 2,700 lb more towing capacity. A higher towing capacity lets you pull bigger trailers, boats and campers. If off-road & towing is your priority, the R1S is the car to pick.
Max towing
TX 350: 5,000 lb R1S: 7,700 lb If you tow regularly, the R1S’s higher rating gives you more margin.
Safety & Tech
R1S leads
The R1S has the slight upper hand on safety & tech. The R1S adds a bigger 15.6 in touchscreen. The R1S’s larger display gives navigation and menus more room. Anyone shopping mainly on safety & tech should start with the R1S.
Largest touchscreen
TX 350: 14 in R1S: 15.6 in Screen size isn’t everything (physical controls and software speed matter too), but bigger is easier to read.
Full Specifications
Engine & Performance
| Spec | TX 350 | R1S |
|---|---|---|
| Powertrain | Gas | Battery electric |
| Engine | 2.4L turbo I4 | Dual electric motors (Dual Standard) |
| Total system output | 275 hp | 533 hp (winner) |
| Torque | 317 lb-ft | 610 lb-ft (winner) |
| Transmission | 8-speed automatic | Single-speed direct drive |
| Drivetrain | FWD (AWD available) | AWD |
Fuel Economy & Range
| Spec | TX 350 | R1S |
|---|---|---|
| Fuel economy (combined)EPA estimate where available | 23 mpg | N/A (not specified) |
| Fuel economy (city) | 21 mpg | N/A (not specified) |
| Fuel economy (highway) | 27 mpg | N/A (not specified) |
| Fuel tank | 17.8 gal | N/A (not specified) |
Space & Practicality
| Spec | TX 350 | R1S |
|---|---|---|
| Seats | 7 seats | 7 seats |
| Cargo (behind rear seats) | 20.2 cu ft | N/A (not specified) |
| Cargo (seats folded) | 97 cu ft Most room, seats folded | N/A (not specified) |
Off-road & Towing
| Spec | TX 350 | R1S |
|---|---|---|
| Max towing | 5,000 lb | 7,700 lb (winner) |
| AWD / 4WD available | Yes | Yes |
Safety & Tech
| Spec | TX 350 | R1S |
|---|---|---|
| Largest touchscreen | 14 in | 15.6 in (winner) |
| Apple CarPlay / Android Auto | N/A (not specified) | Not available (Rivian software) |
| Basic warranty | 4 yr / 50,000 mi | 5 yr / 60,000 mi |
Dimensions
| Spec | TX 350 | R1S |
|---|---|---|
| Length | 203.2 in | 200.8 in |
| Width (no mirrors) | 78.4 in | N/A (not specified) |
| Height | 70.1 in | N/A (not specified) |
| Wheelbase | 116.1 in | 121.1 in |
Price
| Spec | TX 350 | R1S |
|---|---|---|
| Starting MSRP | $56,940 | N/A (not specified) |
“N/A” means the manufacturer does not specify the value or we could not confirm it. Figures marked “manufacturer rating” are the maker’s own claims, not our measurements.
Which One Should You Buy?
Choose the R1S if…
- you merge, overtake or climb hills with a full load (533 hp vs 275 hp)
- you often drive loaded up or with a trailer (610 lb-ft vs 317 lb-ft of torque)
- you tow a camper, boat or trailer (7,700 lb vs 5,000 lb)
- you want the bigger touchscreen (15.6 in vs 14 in)
Also Compared
Frequently Asked Questions
Which is better for most people, the TX 350 or the R1S?
On the specs compared here, the R1S makes more sense for most buyers; the TX 350 doesn’t win a single measurable area.
Is the TX 350 bigger than the R1S?
Neither by much. The TX 350 and the R1S have nearly identical dimensions.
Executive Summary
On paper, the TX 350 and the R1S chase the same buyer. In the details, Lexus and Rivian made different calls. Here’s what matters most to me: the R1S offers 258 hp more power. Plus, the R1S gets 2,700 lb more towing capacity, which I wouldn’t overlook.
The TX 350 is for you if the things a spec sheet can’t capture tops your list; the R1S is for you if engine & performance does.
My pick: the R1S.
Personal opinion based on the data above. Your priorities may differ.