2016 head-to-head · Two-Seater
2016 Mercedes-Benz SLK-Class vs Porsche Cayman
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2016 Mercedes-Benz SLK-Class is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,194 a year to fuel (27 MPG), versus $2,370 for the 2016 Porsche Cayman (25 MPG). That's roughly $176 a year, or about $878 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Mercedes-Benz SLK-Class
- Porsche Cayman
Side by side
| Mercedes-Benz SLK-Class | Porsche Cayman | |
|---|---|---|
| $2,194 | Your annual fuel cost | $2,370 |
| 27 MPG | Combined efficiency | 25 MPG |
| 24 MPG | City | 21 MPG |
| 32 MPG | Highway | 30 MPG |
| 325 g/mi | Tailpipe CO₂ (g/mi) | 359 g/mi |
| 7/10 | EPA fuel economy score | 6/10 |
| 7/10 | EPA greenhouse gas score | 6/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 3.4L 6-cyl |
| 9-speed automatic | Transmission | 7-speed dual-clutch |
| RWD | Drivetrain | RWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Mercedes-Benz SLK-Class vs Porsche Cayman across model years
- Mercedes-Benz SLK-Class
- Porsche Cayman
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 32 2016 two-seaters, the Mercedes-Benz SLK-Class ranks 7th and the Porsche Cayman 10th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2016 Mercedes-Benz SLK-Class or the 2016 Porsche Cayman?
Measured by cost to drive, the Mercedes-Benz SLK-Class. The Mercedes-Benz SLK-Class is rated 27 MPG combined and the Porsche Cayman 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2016 Mercedes-Benz SLK-Class vs. the Porsche Cayman per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,194 for the Mercedes-Benz SLK-Class and $2,370 for the Porsche Cayman.
Mercedes-Benz SLK-Class vs Porsche Cayman in other years
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