17 MPG combined is not a number that will thrill those seeking lower fuel costs, but it’s a figure mostly irrelevant to the buyer considering a 2022 Porsche Cayenne Turbo Coupe with the thunderous 4.0L V8. These individuals prioritize performance, exclusivity, and the sheer thrill of a high-output engine over squeezing every last mile from a gallon of premium fuel. This isn’t a practical choice; it’s an emotional one, a statement backed by serious horsepower and a willingness to pay for it.

City and highway performance

The EPA estimates for the Cayenne Turbo Coupe are 15 MPG in the city and 20 MPG on the highway. That city figure reflects the stop-and-go driving, the hefty curb weight, and the engine’s eagerness to unleash all 541 horsepower at a moment’s notice. The highway number, while still relatively low for a modern vehicle, acknowledges the benefits of the eight-speed automatic transmission and potentially more judicious throttle inputs at cruising speeds. Few Cayenne Turbo Coupe owners will spend much time dwelling on these official figures; they are buying an experience, not just transportation.

Annual fuel cost

The EPA estimates an annual fuel cost of $3,400 for the 2022 Porsche Cayenne Turbo Coupe, based on driving 15,000 miles per year and using national average fuel prices. This calculation assumes a roughly even split between city and highway driving. For drivers with heavier right feet, or those who frequent urban environments, that number could easily climb significantly. For perspective, that $3,400 is roughly equivalent to a down payment on a more fuel-efficient, but far less thrilling, used car. Choosing the Cayenne Turbo Coupe is choosing performance over frugality.

Real-world expectations

While the EPA provides a standardized yardstick, real-world fuel economy for the Cayenne Turbo Coupe will vary greatly depending on driving style and conditions. Expect to see numbers closer to the EPA’s in relaxed highway cruising, perhaps even exceeding the 20 MPG figure slightly. However, consistent spirited driving, urban congestion, and colder weather can easily drag the average down into the low teens. Owners who regularly engage the car’s Sport or Sport Plus modes should anticipate even lower numbers. The type of fuel you use can also impact economy. Consult your owner’s manual for information on additives you can add to your fuel.

How it compares

Compared to its rivals, the Cayenne Turbo Coupe’s fuel economy is largely in line with expectations for the performance SUV segment. The BMW X6 M, a direct competitor, achieves a similar 15 MPG city and 20 MPG highway (17 MPG combined). The Mercedes-AMG GLE 63 S Coupe, even with its mild-hybrid assist, posts comparable figures. A Range Rover Sport P530, with its potent V8, falls within the same range of thirsty performance. Stepping outside the coupe-SUV niche, even the regular Porsche CAYENNE MPG across all years with a similar engine configuration won’t offer significant gains in economy, highlighting the inherent trade-off between performance and efficiency in this class. For buyers focused on fuel savings, the Cayenne E-Hybrid offers much better combined figures, but at the expense of raw power and aural drama. If you’re still interested in the Cayenne, be sure to check all Porsche fuel economy data.

Tips to maximize efficiency

While driving the Cayenne Turbo Coupe primarily focuses on enjoying its performance, there are still a few steps to mitigate some inefficiency. Avoid hard acceleration and braking whenever possible. The V8 is a powerful engine, but it consumes fuel rapidly when pushed hard, especially in city traffic where frequent bursts of speed become necessary.

Ensure your tires are properly inflated, this is important. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and inflate them to the recommended levels listed on the door jamb.

Use cruise control on the highway to maintain a consistent speed. Constant speed fluctuations waste fuel, and the Cayenne’s adaptive cruise control can help to maintain a consistent and efficient pace on longer journeys.

Consider using a lighter throttle input in the lower gears. While the temptation to unleash the full force of the V8 is always there, gentle acceleration from a standstill, especially with the automatic transmission, can make a small but noticeable difference over time.

Minimize idling. Modern engines consume fuel even when stationary, and prolonged idling, particularly in cold weather, can have a detrimental effect on overall fuel economy. Turn off the engine if you’re stopped for an extended period.