2027 head-to-head · Midsize & Large SUV
2027 BMW iX3 vs Mercedes-Benz EQS
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 2027 BMW iX3 (118 MPGe) costs about $772 a year to fuel and the 2027 Mercedes-Benz EQS (114 MPGe) about $799.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- BMW iX3
- Mercedes-Benz EQS
Side by side
| BMW iX3 | Mercedes-Benz EQS | |
|---|---|---|
| $772 | Your annual fuel cost | $799 |
| 118 MPGe | Combined efficiency | 114 MPGe |
| 125 MPGe | City | 112 MPGe |
| 110 MPGe | Highway | 116 MPGe |
| 28.6 kWh | Electricity use (kWh/100 mi) | 29.6 kWh |
| 434 mi | Driving range | 443 mi |
| — | Passenger volume | 103 cu ft |
| — | Cargo volume | 35 cu ft |
| 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 |
| 8 hrs | Charge time at 240V | 12.8 hrs |
| Electric | Powertrain | Electric |
| Electricity | Fuel | Electricity |
| Electric motors (363 kW) | Engine / motor | Electric motors (463 kW) |
| Single-speed | Transmission | 2-speed automatic |
| AWD | Drivetrain | AWD |
✓ 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.
BMW iX3 vs Mercedes-Benz EQS across model years
- BMW iX3
- Mercedes-Benz EQS
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 434 miles for the BMW iX3.
Among 58 2027 midsize & large SUVs, the BMW iX3 ranks 1st and the Mercedes-Benz EQS 3rd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2027 BMW iX3 or the 2027 Mercedes-Benz EQS?
Measured by cost to drive, the BMW iX3. The BMW iX3 is rated 118 MPGe combined and the Mercedes-Benz EQS 114 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2027 BMW iX3 vs. the Mercedes-Benz EQS per year?
At 15,000 miles a year with 18¢/kWh electricity, about $772 for the BMW iX3 and $799 for the Mercedes-Benz EQS.
Which has more range?
The Mercedes-Benz EQS: about 443 miles versus 434 miles.
More 2027 comparisons
BMW iX3 vs…
Or compare the 2027 BMW iX3 with anything else: