23 MPG combined isn’t going to win any green awards, but it’s the price of admission for those seeking the unique blend of luxury, performance, and space that the 2018 Porsche Panamera 4 Executive offers. This extended-wheelbase Panamera isn’t about maximizing miles per gallon; it’s about maximizing driving pleasure and passenger comfort, and providing a distinctly Porsche experience for those in both front and rear seats.

City and highway performance

The EPA estimates suggest 21 MPG in the city and 27 MPG on the highway for the 2018 Panamera 4 Executive. This reflects the reality of a powerful turbocharged engine working in different driving conditions. In urban environments, stop-and-go traffic and shorter bursts of acceleration impact fuel consumption.

On the open road, however, the Panamera’s eight-speed automatic transmission and aerodynamic design allow for more efficient cruising at sustained speeds, edging closer to that 27 MPG figure. The key is smoothness and restraint; aggressive acceleration or frequent braking will quickly diminish economy in either environment.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,500 for the 2018 Panamera 4 Executive. This calculation is based on driving 15,000 miles per year, with a mix of city and highway driving, and using the national average fuel price for premium gasoline, which this Porsche requires.

Bear in mind that this is an estimate. Your actual fuel costs will vary depending on your driving habits, local fuel prices, and the percentage of city versus highway miles you accumulate. If you spend the majority of your time in congested city traffic, expect to exceed that $2,500 figure. Conversely, frequent long-distance highway trips might bring it down slightly.

Real-world expectations

While the EPA estimates provide a useful benchmark, real-world fuel economy often diverges. Owners of the 2018 Panamera 4 Executive should anticipate numbers that may fluctuate slightly above or below the official figures. Driving style is a significant factor. A heavy foot on the accelerator will inevitably reduce MPG, as will frequent use of the Sport or Sport Plus driving modes, which prioritize performance over efficiency.

Traffic conditions, weather, and even tire pressure can also impact fuel consumption. Observing the car’s trip computer and adapting your driving habits accordingly offers the best chance of achieving the best possible fuel economy for your needs.

How it compares

Compared to its rivals, the 2018 Panamera 4 Executive occupies a specific niche. The Mercedes-Benz S450 4Matic, another popular choice in the luxury sedan segment, achieves approximately 22 MPG combined. The BMW 740i xDrive, with its inline-six engine, gets similar numbers to the S450. The Audi A8, depending on the engine configuration, might offer slightly better or worse fuel economy.

The Panamera’s driving experience sets it apart. Buyers choose the Panamera 4 Executive knowing that they are prioritizing a more engaging and dynamic driving experience compared to some of its more comfort-oriented competitors, even if it means a slight compromise on fuel economy. You can explore PANAMERA MPG across all years here.

Tips to maximize efficiency

The 2018 Panamera 4 Executive benefits greatly from gentle and predictive driving. Anticipating traffic flow and avoiding sudden acceleration or braking can make a noticeable difference in fuel consumption. Use cruise control on the highway to maintain a consistent speed and minimize unnecessary throttle adjustments, helping you achieve numbers closer to the EPA’s 27 MPG highway estimate.

Ensure your tires are properly inflated to the recommended pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and wasting fuel. Check your tire pressure regularly, especially during temperature changes, as pressure can fluctuate.

Avoid carrying unnecessary weight in the car. Every extra pound of cargo reduces fuel economy. Remove any items from the trunk or backseat that aren’t essential for your journey and keeping the car clean helps reduce drag, for better fuel economy.

Consider using the “Normal” or “Eco” driving modes for everyday commuting. These modes optimize engine and transmission settings for efficiency, rather than outright performance. Reserving the “Sport” or “Sport Plus” modes for more spirited driving will help improve your overall fuel economy over time. Find all Porsche fuel economy data on this website.