25 MPG combined is a perfectly acceptable number for the 2019 Porsche Cayman with the 2.0L turbocharged four-cylinder. It’s not going to win any hypermiling contests, but this isn’t a car people buy for maximum fuel efficiency. Owners prioritize driving pleasure, sharp handling, and iconic styling. The slightly underwhelming MPG is the price you pay for a taste of Porsche performance in a relatively accessible package.

City and highway performance

The EPA estimates for the 2019 Cayman 2.0L are 22 MPG in the city and 29 MPG on the highway. The city figure reflects stop-and-go traffic where the engine’s responsiveness can be appreciated, but the turbocharger’s boost is somewhat negated. The highway figure demonstrates better efficiency. At steady cruising speeds, the Cayman’s aerodynamic profile and the 7-speed automatic transmission allow it to sip fuel with reasonable restraint. The difference between city and highway suggests most drivers will see slight MPG variations depending on their drive.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 Porsche Cayman 2.0L at exactly $2,300. This figure is based on driving 15,000 miles per year, using a blend of city and highway driving conditions, and assumes national average fuel prices.

This is only an estimate, as your actual fuel costs will change depending on your local fuel prices, your driving style, and the percentage of city versus highway miles you typically drive. If you spend more time on the open road, your expenses will likely go down. Conversely, heavy-footed drivers mostly stuck in urban environments will likely exceed this figure.

Real-world expectations

EPA estimates often differ from real-world experiences, and the Cayman is no exception. Many owners report consistently hitting in the low 20s in mixed driving conditions but see numbers closer to 30 MPG on longer highway trips. Driving style definitely plays a factor.

Someone who frequently exploits the engine’s mid-range punch will inevitably see lower fuel economy figures than someone who adopts a more relaxed driving style. The Cayman encourages spirited driving, which can lead to sacrificing some fuel economy. If you check CAYMAN MPG across all years, you’ll spot this real-world variation continuing, depending on specific model generations.

Owners prioritizing economy will select “Normal” drive mode over “Sport” or “Sport Plus”, which remap the throttle response and shift points for more aggressive performance.

How it compares

Compared to other sports cars in its class, the fuel economy of the Cayman 2.0L is about average, when also considering the power output. A BMW M240i, while packing more horsepower, achieves around 22 MPG combined. The Mercedes-Benz SLC300, another convertible competitor, delivers comparable MPG numbers. The four-cylinder Alpine A110 is lighter and smaller than the Cayman, and its EPA rating showcases the weight difference as being rated at 26 MPG combined.

Ultimately, this comparison comes down to priorities. Someone weighing the Cayman against these alternatives is likely looking for more than just fuel savings; they are seeking a distinct driving experience and prestige. They will review all Porsche fuel economy data, recognizing that certain concessions are made for performance.

Tips to maximize efficiency

While outright fuel efficiency might not be the primary concern for Cayman owners, small adjustments can help improve the numbers. Resist the urge to bury your right foot in the accelerator at every opportunity. The Cayman’s turbocharged engine delivers plenty of strong torque lower in the rev range, so there’s often no need to push it to redline in everyday driving.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which hurts fuel economy. Check your tire pressures regularly and adhere to the pressures listed on the door jamb sticker. This simple maintenance item can also improve handling and extend tire life.

Use the available driving modes effectively. The “Normal” mode optimizes throttle response and shift points for fuel efficiency. Save the “Sport” and “Sport Plus” modes for spirited drives on winding roads or track days.

Avoid unnecessary idling. If you’re stopped for more than a minute, turn the engine off. Modern engines are designed to restart quickly and efficiently, and idling consumes fuel without moving the car. This also reduces emissions, which is beneficial for the environment.