Mercedes-Benz E450 4matic All-Terrain (wagon) MPG by year — every rating on record
The Mercedes-Benz E450 4matic All-Terrain (wagon) has a combined EPA fuel economy rating for 7 model years, from 2021 to 2027. Across those years its best rated version returned 25 mpg (2024) and its thirstiest returned 24 mpg (2021). The EPA record holds 7 configurations for this nameplate, most recently a Midsize Station Wagons.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2021 | 1 | 24 mpg | 24 mpg | #2 of 10 (89th pct) | 4-Wheel Drive | Premium | Midsize Station Wagons |
| 2022 | 1 | 24 mpg | 24 mpg | #2 of 8 (86th pct) | 4-Wheel Drive | Premium | Midsize Station Wagons |
| 2023 | 1 | 24 mpg | 24 mpg | #3 of 9 (75th pct) | All-Wheel Drive | Premium | Midsize Station Wagons |
| 2024 | 1 | 25 mpg | 25 mpg | #2 of 8 (86th pct) | All-Wheel Drive | Premium | Midsize Station Wagons |
| 2025 | 1 | 25 mpg | 25 mpg | #4 of 8 (57th pct) | All-Wheel Drive | Premium | Midsize Station Wagons |
| 2026 | 1 | 25 mpg | 25 mpg | #6 of 12 (55th pct) | All-Wheel Drive | Premium | Midsize Station Wagons |
| 2027 | 1 | 25 mpg | 25 mpg | #2 of 3 (50th pct) | All-Wheel Drive | Premium | Midsize Station Wagons |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Mercedes-Benz E450 4matic All-Terrain (wagon) placed highest in 2021 at #2 of 10, and lowest in 2026 at #6 of 12. It spent 7 of its 7 ranked years in the top half of its class.
Every configuration on record
All 7 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2027 | 3.0L 6-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, supercharged, turbocharged, Hybrid, start-stop | 22 | 31 | 25 | 460.0 | 11.9 | $3,100 | 351 | 5/10 |
| 2026 | 3.0L 6-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, supercharged, turbocharged, Hybrid, start-stop | 22 | 31 | 25 | 460.0 | 11.9 | $3,100 | 351 | 5/10 |
| 2025 | 3.0L 6-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, supercharged, turbocharged, Hybrid, start-stop | 22 | 31 | 25 | 460.0 | 11.9 | $3,100 | 351 | 5/10 |
| 2024 | 3.0L 6-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, supercharged, turbocharged, Hybrid, start-stop | 22 | 31 | 25 | 460.0 | 11.9 | $3,100 | 351 | 5/10 |
| 2023 | 3.0L 6-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 21 | 28 | 24 | 479.2 | 12.4 | $3,250 | 374 | 5/10 |
| 2022 | 3.0L 6-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 21 | 28 | 24 | 479.2 | 12.4 | $3,250 | 368 | 5/10 |
| 2021 | 3.0L 6-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 22 | 28 | 24 | 479.2 | 12.4 | $3,250 | 364 | 5/10 |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 1 of 1 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 2023 → 2024 | 24 → 25 mpg | +1 mpg | 460 gal |
What E450 4matic All-Terrain (wagon) fuel costs over a year
At the EPA's 11,500 miles a year, the 2027 Mercedes-Benz E450 4matic All-Terrain (wagon) burns 460 to 460 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 | $1,380 | $1,380 | $0 |
| $3.50/gal | $1,610 | $1,610 | $0 |
| $4.00/gal | $1,840 | $1,840 | $0 |
EPA’s own estimate for the 2027 model year is $3,100 to $3,100 a year in fuel, or $4,250 more than the average new vehicle over five years.
How it compares with other Midsize Station Wagons
Across the 65 nameplates EPA classifies as Midsize Station Wagons, the median best combined rating is 22 mpg. At 25 mpg the Mercedes-Benz E450 4matic All-Terrain (wagon) is 3 mpg better the median, which is worth about $220 a year at $3.50 a gallon.
- All Midsize Station Wagons 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.