2018 Cadillac ATS
Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data
The 2018 Cadillac ATS is sold in the U.S. with gasoline power. The EPA lists 5 configurations for this model year, with combined economy from 22 to 25 MPG and an estimated annual fuel cost of $2,700 to $3,450 at 15,000 miles.
Key numbers
| Model year | 2018 |
|---|---|
| Vehicle class | Compact Cars |
| Fuel type(s) | Gasoline |
| Combined economy | 22-25 MPG |
| Best / worst combined | 25 / 22 MPG |
| Annual fuel cost | $2,700-$3,450 |
| Tailpipe CO₂ | 348-398 g/mi |
| EPA smog rating | 5-5 / 10 |
What it costs to fuel
Across its configurations, the 2018 ATS costs about $2,700 to $3,450 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $3,100. Over five years that is about $15,500 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 ATS configuration spends about $4,500 more on fuel over five years.
For context, the average combined economy of compact cars in this dataset is about 29 MPG. The ATS sits roughly 5 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 |
|---|---|---|---|---|---|---|
| ATS AWD | 2.0L 4-cyl turbo | All-Wheel | Automatic | Gasoline | 25 MPG | $3,200 |
| ATS | 2.0L 4-cyl turbo | Rear-Wheel | Automatic | Gasoline | 25 MPG | $3,200 |
| ATS | 3.6L 6-cyl | Rear-Wheel | Automatic | Gasoline | 24 MPG | $2,700 |
| ATS | 2.0L 4-cyl turbo | Rear-Wheel | Manual | Gasoline | 23 MPG | $3,450 |
| ATS AWD | 3.6L 6-cyl | All-Wheel | Automatic | Gasoline | 22 MPG | $2,950 |
Emissions, safety and size
The 2018 ATS records tailpipe CO₂ of 348-398 g/mi, an EPA smog rating of 5-5 out of 10. The EPA classifies it as compact cars.
Compare this car
Open the comparison tool to line this 2018 ATS up against any other vehicle in the database, or jump to other years and trims from the 2018 Cadillac ATS overview.
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Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.