2026 head-to-head · Midsize & Large SUV
2026 Mercedes-Benz EQS vs Polestar 4
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
On fuel costs these two are nearly tied. Driving 15,000 miles a year with 18¢/kWh electricity, the most efficient 2026 Mercedes-Benz EQS (98 MPGe) costs about $918 a year to fuel and the 2026 Polestar 4 (95 MPGe) about $945.
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 EQS
- Polestar 4
Side by side
| Mercedes-Benz EQS | Polestar 4 | |
|---|---|---|
| $918 | Your annual fuel cost | $945 |
| 98 MPGe | Combined efficiency | 95 MPGe |
| 98 MPGe | City | 100 MPGe |
| 98 MPGe | Highway | 90 MPGe |
| 34 kWh | Electricity use (kWh/100 mi) | 35 kWh |
| 390 mi | Driving range | 310 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 |
| 14 hrs | Charge time at 240V | 11 hrs |
| Electric | Powertrain | Electric |
| Electricity | Fuel | Electricity |
| Electric motor (265 kW) | Engine / motor | Electric motor (200 kW) |
| Single-speed | Transmission | Single-speed |
| RWD | Drivetrain | RWD |
✓ 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 Polestar 4 across model years
- Mercedes-Benz EQS
- Polestar 4
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 390 miles on a charge, compared with 310 miles for the Polestar 4.
Among 91 2026 midsize & large SUVs, the Mercedes-Benz EQS ranks 6th and the Polestar 4 11th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2026 Mercedes-Benz EQS or the 2026 Polestar 4?
Measured by cost to drive, the Mercedes-Benz EQS. The Mercedes-Benz EQS is rated 98 MPGe combined and the Polestar 4 95 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 Mercedes-Benz EQS vs. the Polestar 4 per year?
At 15,000 miles a year with 18¢/kWh electricity, about $918 for the Mercedes-Benz EQS and $945 for the Polestar 4.
Which has more range?
The Mercedes-Benz EQS: about 390 miles versus 310 miles.
Mercedes-Benz EQS vs Polestar 4 in other years
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