2021 Mercedes-Benz CLS mpg
Combined mpg, 450 RWD
26mpg
- 23 city, 30 highway.
- Top 47% of 81 sedans (2021).
- 3 trims: 23 to 26 mpg.
12,000 miles a year. Gas $3.20.
| Trim | Engine | Drive | City mpg | Hwy mpg | Combined | Tank, gal | Miles per tank | Cost a year |
|---|---|---|---|---|---|---|---|---|
| 450 RWD | 3.0L 6cyl | RWD | 23 | 30 | 26 | 21.1 | 549 | $1,477 |
| CLS 450 4MATIC AWD | 3.0L 6cyl | AWD | 22 | 29 | 25 | 21.1 | 528 | $1,536 |
| AMG CLS 53 4MATIC | 3.0L | AWD | 21 | 26 | 23 | N/A | N/A | $1,670 |
Fuel cost
450 RWD, 26 mpg combined.
- Per year
- $1,477
- Per month
- $123
- Per mile
- 12.3 cents
- Fill the tank
- $67.52
- Top trim: AMG CLS 53 4MATIC. $1,670 a year. $193 more than the 450 RWD.
Trip cost
| Trip | Gallons | Cost |
|---|---|---|
| 100 miles | 3.3 | $10.67 |
| 300 miles | 10.0 | $32.00 |
| 500 miles | 16.7 | $53.33 |
| 1,000 miles | 33.3 | $107 |
Commute cost
- Per month
- $107
- Per year
- $1,280
- Miles a month
- 867
450 RWD. 20 miles each way, 5 days a week.
Is 26 mpg good? Yes. Beats 63% of 2026 cars.
MPG by year
Rivals
| Car | Cheapest trim | MPG or range | Compare |
|---|---|---|---|
| 2021 Mercedes-Benz CLS | 450 RWD | 26 mpg | |
| 2021 BMW M3 | RWD | 19 mpg | Compare |
| 2021 Tesla Model S | Long Range Plus AWD | 405 mi range | |
| 2021 Audi A7 | 55 TFSI Premium AWD | 24 mpg | |
| 2021 Maserati Ghibli | RWD | 20 mpg | |
| 2021 Genesis G90 | 3.3T Premium RWD | 19 mpg | |
| 2021 Audi S6 | Prestige AWD | 22 mpg | Compare |
What this cannot tell you
EPA ratings. Your own mpg will differ.
Gas prices change by state and by week.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree