17 MPG combined is the reality for the 2020 Porsche Cayenne Turbo Coupe, a figure that likely isn’t a big concern for its target buyer. This isn’t a vehicle purchased to save fuel; it’s a statement of performance, design, and driving fun. Buyers care more about the thrill of a twin-turbocharged V8 than saving money at the pump, accepting the fuel consumption as a cost of owning a Cayenne Turbo Coupe.

City and highway performance

The EPA estimates for the Cayenne Turbo Coupe are 15 MPG in the city and 19 MPG on the highway. This difference shows that the engine uses more fuel in stop-and-go traffic with lots of accelerating, but it does a little better when cruising at a steady speed. Keep in mind that even on the highway, the temptation to use all that power will quickly reduce any potential fuel savings. This car wants to be driven hard, and its performance is often explored. For comparison, these ratings are very similar to the non-Coupe version; you can check CAYENNE MPG across all years and body styles.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Porsche Cayenne Turbo Coupe at $3,400, based on driving 15,000 miles per year and using national average fuel prices for premium gasoline. This is a significant cost, especially when compared to more fuel-efficient SUVs or other performance vehicles. For Cayenne Turbo Coupe owners, this cost is often seen as a small price for the prestige, performance, and driving experience the vehicle offers. These buyers don’t usually worry about fuel prices and care more about the feeling of driving a powerful machine.

Real-world expectations

Don’t expect to always get the EPA’s estimates in real-world driving. Hard acceleration, often using Sport and Sport Plus modes, and the enjoyment of using all 541 horsepower will mean lower fuel economy. Many drivers report averages closer to 12-14 MPG in mixed driving, especially in heavy traffic. The Cayenne Turbo Coupe’s performance is what it’s known for, and using that performance uses more fuel. Budget for fuel costs, knowing that your actual costs may be higher than the EPA’s estimate.

How it compares

Compared to its competitors, the Cayenne Turbo Coupe’s fuel economy is in the middle of the high-performance SUV group, meaning that all Porsche fuel economy data is a bit lower. The BMW X6 M, with its similar twin-turbo V8, gets about 16 MPG combined. The Mercedes-AMG GLE 63 S Coupe is in a similar range. Buyers looking at these vehicles usually consider performance and luxury first, with fuel economy being less important. For example, someone might not mind the Cayenne’s slightly lower MPG compared to the 18 MPG-rated Range Rover Sport SVR if they prefer Porsche’s handling. A buyer wanting better fuel economy might consider a Cayenne E-Hybrid, which offers much better gas mileage but less performance.

Tips to maximize efficiency

Try not to always use the engine’s full power. Gentle acceleration and smooth driving can improve fuel economy. While the Cayenne Turbo Coupe is designed for performance, driving carefully can help you get more miles from each tank without losing too much fun.

Use the Porsche’s driving modes wisely. The default “Normal” mode saves fuel by using smoother throttle response and shifting gears sooner. While not as fun as “Sport” or “Sport Plus,” it’s good for highway driving and daily commutes, letting you save fuel when performance isn’t needed.

Make sure your tires have the right amount of air. Low tire pressure increases rolling resistance, which hurts fuel economy. Check your tire pressure often and keep it at the levels on the door. This simple step can slightly improve fuel efficiency.

Remove extra weight. Take out anything you don’t need from the vehicle. Extra weight makes the engine work harder, using more fuel. While it might not be a big difference, it helps to save fuel in a high-performance SUV.

Plan your routes. Avoid busy areas and roads with lots of stop-and-go traffic if you can. Choosing routes with less traffic can lower fuel consumption. Use navigation apps to find the best routes based on current traffic.