Rivian R1S vs Toyota bZ: Specs Compared
Also searched as Toyota bZ vs Rivian R1S specs — both orientations show this same side-by-side comparison.
The Toyota bZ is the more efficient of the two: it reaches 131 mpg combined versus 85 mpg for the Rivian R1S, a 46 mpg advantage and costs about $350 less per year to fuel.
Across 4 measured categories, the Toyota bZ leads in 4. Figures are EPA test data, not manufacturer claims.
2022–2027
Rivian R1S
Standard Sport Utility Vehicle 4WD · 94 configurations
2026–2026
Toyota bZ
Small Sport Utility Vehicle 4WD · 8 configurations
Head-to-head specifications
| Metric | Rivian R1S | Toyota bZ |
|---|---|---|
| Best combined MPG | 85 mpg | 131 mpg ✓ |
| Best city MPG | 94 mpg | 144 mpg ✓ |
| Best highway MPG | 77 mpg | 119 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $900 | $550 ✓ |
| Lowest CO2 output | Not available | Not available |
| Engines offered | Not available | Not available |
| Transmissions | Automatic (A1) | Automatic (A1) |
| Drivetrains | 4-Wheel Drive, Part-time 4-Wheel Drive, All-Wheel Drive | All-Wheel Drive, Front-Wheel Drive |
| Fuel types | Electricity | Electricity |
| EPA class | Standard Sport Utility Vehicle 4WD | Small Sport Utility Vehicle 4WD |
| Years covered | 2022–2027 | 2026–2026 |
| Configurations on record | 94 | 8 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Rivian R1S vs Toyota bZ dimensions and size
The Rivian R1S is 16.1 inches longer than the Toyota bZ on a wheelbase 9.1 inches longer, and 2,603.7 lbs heavier. At over 200 inches, the larger of the two is past the comfortable limit of a standard 192-inch single garage bay once you allow walking room.
| Dimension | Rivian R1S (2026) | Toyota bZ (2026) | Difference |
|---|---|---|---|
| Length | 200.8 in | 184.6 in | 16.1 in |
| Width (excl. mirrors) | 79.1 in | 73.2 in | 5.9 in |
| Height | 77.2 in | 65 in | 12.2 in |
| Wheelbase | 121.3 in | 112.2 in | 9.1 in |
| Curb weight | 7,068 lbs | 4,464 lbs | 2,604 lbs |
Width excludes mirrors; add 8–12 inches for mirrors out. Figures are for the newest model year on record for each vehicle. See both drawn to scale.
Rivian R1S vs Toyota bZ: what the numbers mean
Running cost over five years: at the EPA's 15,000-mile-a-year assumption the Toyota bZ burns about $550 of fuel annually against $900 for the Rivian R1S. That $350 yearly gap compounds to roughly $1,750 over five years and $2,800 over eight — often more than the price difference between two trims of the same vehicle, and the single largest running-cost line item separating these two.
City and highway economy: the Toyota bZ leads in both cycles — 144 mpg city and 119 mpg highway against 94 and 77 mpg — so its fuel-efficiency advantage holds whether you commute in traffic or cover long highway miles.
Drivetrain and class: the Rivian R1S is offered with 4-Wheel Drive, Part-time 4-Wheel Drive, All-Wheel Drive, the Toyota bZ with All-Wheel Drive, Front-Wheel Drive. All-wheel drive typically costs one to two mpg combined against the same vehicle in front- or rear-wheel drive, which is worth remembering when the gap between these two is small. The EPA classes them as Standard Sport Utility Vehicle 4WD and Small Sport Utility Vehicle 4WD respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.
R1S vs bZ: common questions
Which is better on gas, the Rivian R1S or the Toyota bZ?
The Toyota bZ is the more efficient of the two: it reaches 131 mpg combined versus 85 mpg for the Rivian R1S, a 46 mpg advantage and costs about $350 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Toyota bZ runs about $550 a year in fuel at its most efficient configuration, versus about $900 for the Rivian R1S — a difference of roughly $350 per year.
What engines do the R1S and bZ offer?
Rivian R1S: no engine data on record. Toyota bZ: no engine data on record.
Are they in the same vehicle class?
The EPA classifies the Rivian R1S as Standard Sport Utility Vehicle 4WD and the Toyota bZ as Small Sport Utility Vehicle 4WD, so they aren't a like-for-like match on size.
More R1S comparisons
More bZ comparisons
Comparison id: rivian-r1s-vs-toyota-bz