Mercedes-Benz EQS 450 4matic (SUV) MPG by year — every rating on record
The Mercedes-Benz EQS 450 4matic (SUV) has a combined EPA fuel economy rating for 3 model years, from 2023 to 2025. Across those years its best rated version returned 83 mpg (2024) and its thirstiest returned 78 mpg (2023). The EPA record holds 3 configurations for this nameplate, most recently a Standard Sport Utility Vehicle 4WD.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2023 | 1 | 78 mpg | 78 mpg | #13 of 139 (91th pct) | All-Wheel Drive | Electricity | Standard Sport Utility Vehicle 4WD |
| 2024 | 1 | 83 mpg | 83 mpg | #23 of 166 (87th pct) | All-Wheel Drive | Electricity | Standard Sport Utility Vehicle 4WD |
| 2025 | 1 | 79 mpg | 79 mpg | #41 of 192 (79th pct) | All-Wheel Drive | Electricity | Standard Sport Utility Vehicle 4WD |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Mercedes-Benz EQS 450 4matic (SUV) placed highest in 2023 at #13 of 139, and lowest in 2025 at #41 of 192. It spent 3 of its 3 ranked years in the top half of its class.
Every configuration on record
All 3 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | Range | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | All-Wheel Drive Automatic (A1) Electricity | EV, start-stop | 80 | 78 | 79 | 145.6 | 0.1 | $950 | 312 mi | n/a | 10/10 |
| 2024 | All-Wheel Drive Automatic (A1) Electricity | EV, start-stop | 84 | 82 | 83 | 138.6 | 0.1 | $900 | 330 mi | n/a | 10/10 |
| 2023 | All-Wheel Drive Automatic (A1) Electricity | EV, start-stop | 79 | 77 | 78 | 147.4 | 0.1 | $950 | 285 mi | n/a | 10/10 |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 1 of 2 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 2023 → 2024 | 78 → 83 mpg | +5 mpg | 139 gal |
| 2024 → 2025 | 83 → 79 mpg | -4 mpg | 146 gal |
What EQS 450 4matic (SUV) fuel costs over a year
At the EPA's 11,500 miles a year, the 2025 Mercedes-Benz EQS 450 4matic (SUV) burns 146 to 146 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $437 | $437 | $0 |
| $3.50/gal | $509 | $509 | $0 |
| $4.00/gal | $582 | $582 | $0 |
EPA’s own estimate for the 2025 model year is $950 to $950 a year in fuel, or $6,500 less than the average new vehicle over five years.
How it compares with other Standard Sport Utility Vehicle 4WD
Across the 317 nameplates EPA classifies as Standard Sport Utility Vehicle 4WD, the median best combined rating is 22 mpg. At 79 mpg the Mercedes-Benz EQS 450 4matic (SUV) is 57 mpg better the median, which is worth about $1,320 a year at $3.50 a gallon.
- All Standard Sport Utility Vehicle 4WD rankings — every nameplate in the class, best to worst.
Other Mercedes-Benz nameplates
Every Mercedes-Benz model compared → — all nameplates ranked by best combined rating, with what each one costs a year.