2019 Mercedes-Benz SL-Class
Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data
The 2019 Mercedes-Benz SL-Class is sold in the U.S. with gasoline power. The EPA lists 3 configurations for this model year, with combined economy from 18 to 23 MPG and an estimated annual fuel cost of $3,450 to $4,450 at 15,000 miles.
Key numbers
| Model year | 2019 |
|---|---|
| Vehicle class | Two Seaters |
| Fuel type(s) | Gasoline |
| Combined economy | 18-23 MPG |
| Best / worst combined | 23 / 18 MPG |
| Annual fuel cost | $3,450-$4,450 |
| Tailpipe CO₂ | 387-488 g/mi |
| EPA smog rating | 3-3 / 10 |
What it costs to fuel
Across its configurations, the 2019 SL-Class costs about $3,450 to $4,450 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $3,967. Over five years that is about $19,833 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 SL-Class configuration spends about $5,750 more on fuel over five years.
For context, the average combined economy of two seaters in this dataset is about 23 MPG. The SL-Class sits roughly 2 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 |
|---|---|---|---|---|---|---|
| SL450 | 3.0L 6-cyl turbo | Rear-Wheel | Automatic | Gasoline | 23 MPG | $3,450 |
| SL550 | 4.7L 8-cyl turbo | Rear-Wheel | Automatic | Gasoline | 20 MPG | $4,000 |
| AMG SL63 | 5.5L 8-cyl turbo | Rear-Wheel | Automatic | Gasoline | 18 MPG | $4,450 |
Emissions, safety and size
The 2019 SL-Class records tailpipe CO₂ of 387-488 g/mi, an EPA smog rating of 3-3 out of 10. The EPA classifies it as two seaters.
Compare this car
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Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.