2020 Mercedes-Benz C-Class
Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data
The 2020 Mercedes-Benz C-Class is sold in the U.S. with gasoline power. The EPA lists 15 configurations for this model year, with combined economy from 20 to 28 MPG and an estimated annual fuel cost of $2,850 to $4,000 at 15,000 miles.
Key numbers
| Model year | 2020 |
|---|---|
| Vehicle class | Subcompact Cars |
| Fuel type(s) | Gasoline |
| Combined economy | 20-28 MPG |
| Best / worst combined | 28 / 20 MPG |
| Annual fuel cost | $2,850-$4,000 |
| Tailpipe CO₂ | 315-452 g/mi |
| EPA smog rating | 3-6 / 10 |
What it costs to fuel
Across its configurations, the 2020 C-Class costs about $2,850 to $4,000 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $3,573. Over five years that is about $17,867 in fuel alone before maintenance, insurance and depreciation — which is why the running cost, not just the price, decides what a car really costs.
Relative to an average new vehicle, this C-Class configuration spends about $2,750 more on fuel over five years.
For context, the average combined economy of subcompact cars in this dataset is about 27 MPG. The C-Class sits roughly 3 MPG below that mark at its midpoint, making it thirstier than average for its EPA class.
Configurations and fuel economy
| Version | Engine | Drive | Trans | Fuel | Combined | Annual fuel |
|---|---|---|---|---|---|---|
| C300 | 2.0L 4-cyl turbo | Rear-Wheel | Automatic | Gasoline | 28 MPG | $2,850 |
| C300 4matic | 2.0L 4-cyl turbo | 4-Wheel | Automatic | Gasoline | 26 MPG | $3,050 |
| C300 Coupe | 2.0L 4-cyl turbo | Rear-Wheel | Automatic | Gasoline | 25 MPG | $3,200 |
| C300 4matic Coupe | 2.0L 4-cyl turbo | 4-Wheel | Automatic | Gasoline | 25 MPG | $3,200 |
| C300 4matic Convertible | 2.0L 4-cyl turbo | 4-Wheel | Automatic | Gasoline | 24 MPG | $3,300 |
| C300 Convertible | 2.0L 4-cyl turbo | Rear-Wheel | Automatic | Gasoline | 24 MPG | $3,300 |
| AMG C43 4matic Coupe | 3.0L 6-cyl turbo | 4-Wheel | Automatic | Gasoline | 22 MPG | $3,650 |
| AMG C43 4matic | 3.0L 6-cyl turbo | 4-Wheel | Automatic | Gasoline | 22 MPG | $3,650 |
| AMG C43 4matic Convertible | 3.0L 6-cyl turbo | 4-Wheel | Automatic | Gasoline | 21 MPG | $3,800 |
| AMG C63 | 4.0L 8-cyl turbo | Rear-Wheel | Automatic | Gasoline | 21 MPG | $3,800 |
| AMG C63 S | 4.0L 8-cyl turbo | Rear-Wheel | Automatic | Gasoline | 21 MPG | $3,800 |
| AMG C63 S Convertible | 4.0L 8-cyl turbo | Rear-Wheel | Automatic | Gasoline | 20 MPG | $4,000 |
| AMG C63 Convertible | 4.0L 8-cyl turbo | Rear-Wheel | Automatic | Gasoline | 20 MPG | $4,000 |
| AMG C63 S Coupe | 4.0L 8-cyl turbo | Rear-Wheel | Automatic | Gasoline | 20 MPG | $4,000 |
| AMG C63 Coupe | 4.0L 8-cyl turbo | Rear-Wheel | Automatic | Gasoline | 20 MPG | $4,000 |
Emissions, safety and size
The 2020 C-Class records tailpipe CO₂ of 315-452 g/mi, an EPA smog rating of 3-6 out of 10. The EPA classifies it as subcompact cars.
Compare this car
Open the comparison tool to line this 2020 C-Class up against any other vehicle in the database, or jump to other years and trims from the 2020 Mercedes-Benz C-Class overview.
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Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.