The 2022 Porsche Cayenne Turbo S/Coupe E-Hybrid achieves 18 MPG combined. This isn’t an economy car. It’s a high-performance SUV, a technological marvel, and a statement piece for buyers who prioritize power, luxury, and a plug-in hybrid powertrain over thriftiness at the pump. The fuel economy, while not class-leading, reflects the performance this vehicle offers.

City and highway performance

EPA estimates are 17 MPG in the city and 20 MPG on the highway. The city figure reflects stop-and-go conditions where the hefty Cayenne uses its electric motor to augment the 4.0L V8, providing instant torque and some emissions-free driving. The highway number shows the impact of aerodynamic drag and rolling resistance at higher speeds. Even with the electric motor providing assistance, sustaining high speeds requires the gasoline engine to shoulder most of the load.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2022 Porsche Cayenne Turbo S/Coupe E-Hybrid is $3,200. This is based on driving 15,000 miles per year and using national average fuel prices. Owners who primarily drive short distances and diligently charge the battery may see considerably lower actual fuel costs. Buyers who frequently engage the Cayenne’s performance or rely heavily on highway driving may find that their annual fuel expenses exceed the EPA estimate.

Real-world expectations

Manufacturer fuel economy numbers are helpful as a guide, but often differ from what owners experience. The Cayenne Turbo S/Coupe E-Hybrid is sensitive to driving style and charging habits. A lead foot will quickly diminish fuel economy, and neglecting to plug in regularly will, as well. This isn’t a vehicle for hypermiling, but conscientious use of the E-Hybrid system can make a tangible difference. Owners who prioritize electric driving around town and use the gasoline engine primarily for longer trips will see the best results. However, it’s unlikely to ever be truly “economical” for most drivers. The benefit is performance, and the ability to travel short distances emission free.

How it compares

Within the realm of high-performance plug-in hybrid SUVs, the Cayenne Turbo S/Coupe E-Hybrid is unique. The BMW X5 xDrive45e achieves a combined MPG of 20, slightly better than the Cayenne. The BMW however offers less overall horsepower and a less engaging driving experience. The Range Rover Sport P400e offers similar performance figures to the BMW, but at the expense of interior finish and reliability. Looking outside the PHEV segment shows even more stark contrasts. A Mercedes-AMG GLE 63 S Coupe delivers similar performance with an MPG rating in the mid-teens, though it lacks electric assistance. For buyers considering the Cayenne Turbo S/Coupe E-Hybrid, the key factor is the trade-off between performance, electric capability, and fuel economy. Find CAYENNE MPG across all years to determine if there are any models that might be a better fit.

Tips to maximize efficiency

Use the E-Charge mode when appropriate. On longer highway drives, using this mode will recharge the battery while you’re already burning gasoline, providing electric range for when you reach city traffic. E-Charge mode will decrease fuel economy at the time, so it’s a long-term strategy.

Precondition the cabin while plugged in. Using the Porsche Connect app, you can pre-heat or pre-cool the interior while the vehicle is connected to a charger. This reduces the energy demand on the battery or gasoline engine when you start driving, especially in extreme temperatures.

Monitor your driving style. Aggressive acceleration and hard braking consume significantly more fuel. Smooth, deliberate inputs will help maintain efficiency and maximize the electric range. Pay attention to the power meter in the instrument cluster and try to stay within the electric driving range as much as possible.

Maintain proper tire inflation. Correctly inflated tires reduce rolling resistance, improving fuel economy and tire life. Check your tire pressures regularly, especially before long trips, and adjust them to the recommended levels specified on the door placard.

Service the vehicle according to Porsche’s recommended maintenance schedule. A well-maintained engine and hybrid system will operate more efficiently. Regular oil changes, air filter replacements, and spark plug inspections can all improve fuel economy. See all Porsche fuel economy data.