21 MPG combined from the 2018 Porsche Panamera Turbo S e-Hybrid won’t win any hypermiling competitions, but given that it’s Porsche’s flagship sedan, a brutally fast and endlessly capable performance machine that also happens to be a hybrid, it’s a number most owners readily accept. This car is designed for incredibly fast speed, excellent handling, and the kind of luxurious features usually reserved for vehicles twice the price. Fuel economy, while considered, isn’t typically the driving factor behind a Panamera Turbo S e-Hybrid purchase.

City and highway performance

The EPA estimates for city and highway driving are 19 MPG and 23 MPG respectively. While the hybrid powertrain provides some electric-only range (around 14 miles in real-world conditions), it’s important to remember that this is a twin-turbocharged, 4.0-liter V8-powered vehicle. Aggressive acceleration, something this Panamera encourages at every opportunity, will quickly deplete any battery assistance and significantly reduce fuel efficiency in both city and highway environments. The automatic (AM-S8) transmission makes the most of the engine’s power, but it can’t defy the laws of physics, or the driver’s right foot.

Annual fuel cost

The EPA calculates an annual fuel cost of $2,750 for the 2018 Porsche Panamera Turbo S e-Hybrid. This figure is based on driving 15,000 miles per year, using a national average fuel price for the type of fuel the vehicle requires (premium, in this case), and the EPA’s combined MPG rating. It’s a helpful benchmark, but individual fuel costs will vary depending on driving habits, fuel prices in your specific geographic area, and the ratio of city to highway driving involved in your typical commute.

Real-world expectations

Real-world fuel economy for the Panamera Turbo S e-Hybrid often mirrors the EPA estimates, but experiences can vary significantly. Drivers who frequently push the car’s full performance potential will likely see figures closer to the city rating, or even lower. On the other hand, those who prioritize efficient driving and use the electric-only mode for shorter trips might achieve slightly better-than-average results. However, anyone consistently expecting much higher numbers needs to reconsider the vehicle’s nature. This is a performance car that has a hybrid system, not the other way around.

How it compares

Compared to its more conventional rivals, the Panamera Turbo S e-Hybrid’s fuel economy lands in an interesting spot. The non-hybrid Panamera Turbo, for instance, achieves slightly better (though still comparable) figures of 21 MPG combined. The BMW M5, a direct performance competitor, manages similar numbers around 17 MPG city and 24 MPG highway. A Mercedes-AMG E63 S offers around 16 MPG city and 23 MPG highway. What sets the Porsche apart is the electric-only range and potential for even lower emissions, aspects that might appeal to buyers hoping for less gas in addition to performance. For specific EPA data on PANAMERA MPG across all years, consumers can consult them directly. You can also view all Porsche fuel economy data here.

Tips to maximize efficiency

Use the “E-Hold” mode strategically. This mode allows you to preserve the battery’s charge for later use, such as navigating congested city streets where electric power is most efficient. Planning your routes to maximize electric-only driving in stop-and-go traffic can significantly reduce fuel consumption.

Gentle acceleration is key to getting the most out of the hybrid system. Avoid aggressive starts and hard braking, as these deplete the battery quickly and force the gasoline engine to work harder. Smooth, deliberate driving will allow the electric motor to assist more frequently.

Regularly check tire pressure and ensure proper inflation. Underinflated tires increase rolling resistance, which reduces fuel economy. The Panamera Turbo S e-Hybrid is a heavy vehicle, and maintaining optimal tire pressure is critical for efficiency and handling.

Avoid unnecessary idling. Though the hybrid system shuts off the engine at stops, extended idling still consumes fuel. If you anticipate a prolonged wait, it’s often more efficient to turn off the vehicle entirely.

Be mindful of aerodynamic drag. Removing roof racks or cargo carriers when not in use can improve fuel economy, particularly at higher speeds. The Panamera’s sleek design already benefits from aerodynamic efficiency, but minimizing drag further enhances fuel conservation.