19 MPG combined is what owners of the 2021 Porsche Panamera 4S Sport Turismo with the 2.9L V6 get. Nobody buys a Panamera 4S ST for its fuel efficiency. This is a statement vehicle, a fast, comfortable, and incredibly versatile machine that prioritizes performance and driving experience above all else. Fuel economy is, at best, a secondary consideration for its clientele.

City and highway performance

The EPA estimates are 17 MPG in the city and 23 MPG on the highway. The difference between these two figures shows the Panamera’s character. In dense urban settings, stop-and-go traffic will punish the engine’s thirst. However, out on the open road at a steady cruise, the car’s advanced eight-speed automatic transmission and relatively modest engine displacement allow it to achieve a respectable highway MPG figure. This reflects the Panamera 4S ST’s nature as both a capable long-distance tourer and a thrilling performance machine.

Annual fuel cost

Based on the EPA’s estimates of 15,000 miles of driving per year and using national average fuel prices, the annual fuel cost for the 2021 Porsche Panamera 4S ST is $3,050. This is a significant expense, and it’s one that prospective buyers should consider when determining overall ownership costs. Remember that this figure is based on average driving habits and fuel prices, and your own expenses could vary depending on your driving style and location.

Real-world expectations

While the EPA provides a standardized baseline, real-world fuel economy often differs. Aggressive driving, frequent short trips, and consistent use of Sport or Sport Plus modes will drive down MPG. But, a careful driver who anticipates traffic and employs a gentle right foot might see numbers closer to the EPA’s estimates, or even slightly better on long highway drives. Note that using premium fuel, as recommended by Porsche, will further increase running costs.

How it compares

The Panamera 4S ST’s fuel economy is in the middle ground among its rivals. For example, the Mercedes-AMG CLS 53, a similarly styled “four-door coupe,” achieves around 21 MPG combined. The Audi RS7, with its more powerful V8, dips to around 18 MPG. If you peruse all Porsche fuel economy data, you’ll see a clear trend, and when looking at PANAMERA MPG across all years, it’s not the most efficient vehicle in it’s class, but also not the absolute worst. The BMW M8 Gran Coupe will also struggle to match the Panamera’s numbers, landing closer to 17 MPG combined. These differences matter less to buyers than the overall driving experience, brand prestige, and styling. The Panamera 4S ST trades a few MPG for its unique performance and practicality.

Tips to maximize efficiency

One of the best ways to improve fuel economy is to adopt a smoother driving style. Avoid sudden acceleration and braking, as these consume the most fuel. Gentle and gradual inputs will yield the best results, especially in city driving.

Make sure that your tires are properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and lowers fuel efficiency. Check your tire pressure regularly and inflate them to the recommended levels, which can be found on the driver’s side doorjamb or in the owner’s manual.

Don’t use Sport and Sport Plus modes unless you’re maximizing performance. These modes adjust the engine and transmission settings for quicker acceleration and sharper throttle response, but decrease fuel economy. In normal driving conditions, stick to Comfort or Normal mode.

Reduce weight in the vehicle. Carrying extra cargo adds to the car’s overall weight, which requires more energy to accelerate and maintain speed. Remove any items you don’t need, such as golf clubs, extra luggage, or bulky items, to improve fuel efficiency.