The 2018 Porsche Panamera 4S Sport Turismo, with its 2.9L twin-turbo V6, gets a combined 22 MPG. It’s not the most fuel-efficient vehicle, but buyers likely aren’t comparing it to a Prius. This shooting brake is designed to blend great performance with practicality, so the fuel economy is a reasonable tradeoff. The all-wheel-drive system and available power explain this number.

City and highway performance

The EPA estimates 20 MPG in the city and 26 MPG on the highway. The city number reflects the frequent stops and starts most drivers experience, showing the engine’s efficiency when accelerating from a standstill. The highway figure shows the Panamera 4S ST can get good gas mileage at consistent speeds, thanks to its 8-speed automatic transmission (AM-S8), which keeps the engine at its most efficient RPM. The difference shows how driving style and conditions affect fuel consumption.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Porsche Panamera 4S Sport Turismo at $2,650. This calculation uses 15,000 miles of driving per year and the national average price for premium gasoline, which this vehicle requires. Actual costs can vary based on your driving habits, local fuel prices, and the percentage of city versus highway miles you drive. This is an expense that Panamera owners are likely prepared for, but understanding the cost is still helpful.

Real-world expectations

While the EPA provides a standard, real-world fuel economy can differ. Aggressive driving, using Sport or Sport Plus modes often, and long idling will reduce your MPG. A smoother driving style, anticipating traffic, and more highway driving can help you meet or beat the EPA estimates.

How it compares

Compared to its rivals, the Panamera 4S ST’s fuel economy is competitive, but not the best. The Mercedes-AMG CLS53, which also has a boosted six-cylinder engine and all-wheel drive, gets a slightly higher 23 MPG combined. The BMW M550i xDrive, with its V8 engine, gets around 19 MPG. The Audi RS7, known for its performance from a V8 engine, gets a similar 18 MPG combined. The decision for Panamera owners comes down to the car’s handling and luxury, not just MPG. For Porsche fuel consumption, you can see a detailed comparison.

Tips to maximize efficiency

Use the car’s driving modes. When performance isn’t needed, select “Normal” or “Eco” mode. These settings optimize the engine and transmission for efficiency, saving fuel compared to “Sport” or “Sport Plus” modes which increase responsiveness.

Check tire pressure. Underinflated tires increase rolling resistance, making the engine work harder and consume more fuel. Regularly check and maintain the recommended tire pressure for your Panamera 4S ST.

Avoid idling. Modern engines are designed to be efficient when running, but idling consumes fuel without going anywhere. If you anticipate sitting for more than a minute, turn off the engine if you can.

Use cruise control on the highway. Maintaining a consistent speed minimizes acceleration and deceleration, which can improve fuel economy, especially on long drives.

Service your car on time. Regular maintenance, including oil changes and air filter replacements, ensures the engine runs well and efficiently. Skipping these tasks can hurt fuel economy. Also be aware of the PANAMERA MPG across all years to help you maximize efficiency!