2027 head-to-head · Midsize & Large SUV
2027 Mercedes-Benz EQS vs Rivian R2
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2027 Mercedes-Benz EQS is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity, it costs about $799 a year to fuel (114 MPGe), versus $869 for the 2027 Rivian R2 (105 MPGe). That's roughly $70 a year, or about $351 over five years.
Your numbers
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Fuel cost over 10 years
- Mercedes-Benz EQS
- Rivian R2
Side by side
| Mercedes-Benz EQS | Rivian R2 | |
|---|---|---|
| $799 | Your annual fuel cost | $869 |
| 114 MPGe | Combined efficiency | 105 MPGe |
| 112 MPGe | City | 114 MPGe |
| 116 MPGe | Highway | 96 MPGe |
| 29.6 kWh | Electricity use (kWh/100 mi) | 32.2 kWh |
| 443 mi | Driving range | 330 mi |
| 103 cu ft | Passenger volume | — |
| 35 cu ft | Cargo volume | — |
| 0 g/mi | Tailpipe CO₂ (g/mi) | 0 g/mi |
| 9/10 | EPA fuel economy score | 9/10 |
| 10/10 | EPA greenhouse gas score | 10/10 |
| 12.8 hrs | Charge time at 240V | 9.5 hrs |
| Electric | Powertrain | Electric |
| Electricity | Fuel | Electricity |
| Electric motors (463 kW) | Engine / motor | Electric motor (300 kW) |
| 2-speed automatic | Transmission | Single-speed |
| AWD | 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 EQS vs Rivian R2 across model years
- Mercedes-Benz EQS
- Rivian R2
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 Mercedes-Benz EQS goes farther between stops: about 443 miles on a charge, compared with 330 miles for the Rivian R2.
Among 58 2027 midsize & large SUVs, the Mercedes-Benz EQS ranks 3rd and the Rivian R2 6th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2027 Mercedes-Benz EQS or the 2027 Rivian R2?
Measured by cost to drive, the Mercedes-Benz EQS. The Mercedes-Benz EQS is rated 114 MPGe combined and the Rivian R2 105 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2027 Mercedes-Benz EQS vs. the Rivian R2 per year?
At 15,000 miles a year with 18¢/kWh electricity, about $799 for the Mercedes-Benz EQS and $869 for the Rivian R2.
Which has more range?
The Mercedes-Benz EQS: about 443 miles versus 330 miles.
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