The 2023 Porsche Cayenne S Coupe’s 18 MPG combined fuel economy isn’t setting any records, nor is it meant to. This machine prioritizes performance, with its sloping coupe-like design and twin-turbocharged V6 engine built for rapid acceleration and engaging driving. Fuel economy is a secondary concern for the Cayenne S Coupe buyer, who likely cares more about speed than gas prices.

City and highway performance

The EPA estimates 16 MPG in the city and 21 MPG on the highway. Stop-and-go traffic impacts all vehicles, and the Cayenne S Coupe’s performance-tuned engine isn’t immune. The highway figure shows the engine can cruise efficiently at steady speeds, thanks to the eight-speed automatic transmission selecting higher gears. Even at highway speeds, a tap of the accelerator unleashes power, hinting at the performance available. View all all Porsche fuel economy data.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 Porsche Cayenne S Coupe at $3,200. This is based on 15,000 miles per year, with 55% in the city and 45% on the highway. The calculation uses the national average fuel prices during EPA testing. Your actual fuel costs may vary with your driving, fuel type, and local prices. More aggressive driving or more time in stop-and-go traffic may exceed the $3,200 figure.

Real-world expectations

While EPA figures offer a baseline, real-world fuel economy can differ. Many Cayenne S Coupe owners prioritize performance driving, using Sport and Sport Plus modes often, which lowers MPG. Resisting the twin-turbo V6’s power is difficult. Other factors like tire pressure, maintenance, and weather can influence fuel consumption. Expect slightly lower MPG than the EPA estimates if you regularly drive aggressively. Before making your decision, check CAYENNE MPG across all years.

How it Compares

The Cayenne S Coupe is in a competitive market balancing performance and efficiency. The BMW X6 M50i, with its 523-horsepower twin-turbo V8, achieves 18 MPG combined, just like the Cayenne S Coupe. The Mercedes-AMG GLE 53 Coupe, also with a performance tuned engine, gets approximately 20 MPG combined. The Land Rover Range Rover Sport isn’t a coupe SUV, but it blends luxury and performance; its fuel economy varies by engine, with some below the Cayenne S Coupe and others slightly above. A 1-2 MPG difference is unlikely to sway buyers in this segment, as styling, performance, and brand matter most.

Tips to Maximize Efficiency

Fuel economy might not be the top priority, but drivers can still optimize MPG. Avoiding quick acceleration and hard braking can reduce fuel consumption. The Cayenne S Coupe’s responsiveness is fun, but a gentler approach saves gas.

Regularly check tire pressure. Underinflated tires increase rolling resistance, making the engine work harder and using more fuel. The sticker on the driver’s side doorjamb shows the recommended tire pressure for your Cayenne S Coupe.

Reduce unnecessary weight in the vehicle. Extra cargo adds weight, reducing fuel efficiency. Remove items you don’t need regularly, like golf clubs or tools. The car is still fast with weight, but it requires more fuel to move.

On the highway, cruise control helps. Maintaining a constant speed reduces accelerating and decelerating, improving fuel economy. Pay attention to traffic and adjust your speed for safety.

Try using “Normal” driving mode for commuting. This mode adjusts engine and transmission settings for fuel efficiency, reducing throttle response from “Sport” modes for fuel savings. A light foot in Sport or Sport Plus still burns more gas than a normal foot in “Normal” mode.