2026 head-to-head · Midsize & Large SUV
2026 Mercedes-Benz G-Class EV vs Rivian R1S
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
4WD · Electric motor (180 kW) · 2-speed automatic · 62 MPGe · 239 mi
The 2026 Rivian R1S is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity, it costs about $1,066 a year to fuel (85 MPGe), versus $1,458 for the 2026 Mercedes-Benz G-Class EV (62 MPGe). That's roughly $392 a year, or about $1,958 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Mercedes-Benz G-Class EV
- Rivian R1S
Side by side
| Mercedes-Benz G-Class EV | Rivian R1S | |
|---|---|---|
| $1,458 | Your annual fuel cost | $1,066 |
| 62 MPGe | Combined efficiency | 85 MPGe |
| 68 MPGe | City | 94 MPGe |
| 56 MPGe | Highway | 77 MPGe |
| 54 kWh | Electricity use (kWh/100 mi) | 39.5 kWh |
| 239 mi | Driving range | 329 mi |
| 0 g/mi | Tailpipe CO₂ (g/mi) | 0 g/mi |
| 8/10 | EPA fuel economy score | 9/10 |
| 10/10 | EPA greenhouse gas score | 10/10 |
| 14 hrs | Charge time at 240V | 12 hrs |
| Electric | Powertrain | Electric |
| Electricity | Fuel | Electricity |
| Electric motor (180 kW) | Engine / motor | Electric motor (264 kW) |
| 2-speed automatic | Transmission | Single-speed |
| 4WD | Drivetrain | 4WD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Mercedes-Benz G-Class EV vs Rivian R1S across model years
- Mercedes-Benz G-Class EV
- Rivian R1S
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
The Rivian R1S goes farther between stops: about 329 miles on a charge, compared with 239 miles for the Mercedes-Benz G-Class EV.
Among 91 2026 midsize & large SUVs, the Mercedes-Benz G-Class EV ranks 23rd and the Rivian R1S 17th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2026 Mercedes-Benz G-Class EV or the 2026 Rivian R1S?
Measured by cost to drive, the Rivian R1S. The Mercedes-Benz G-Class EV is rated 62 MPGe combined and the Rivian R1S 85 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 Mercedes-Benz G-Class EV vs. the Rivian R1S per year?
At 15,000 miles a year with 18¢/kWh electricity, about $1,458 for the Mercedes-Benz G-Class EV and $1,066 for the Rivian R1S.
Which has more range?
The Rivian R1S: about 329 miles versus 239 miles.
Mercedes-Benz G-Class EV vs Rivian R1S in other years
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