The 2019 Tesla Model S P100D achieves an EPA-estimated 98 MPGe combined, a figure that’s almost irrelevant when considering the purpose of this all-electric super sedan. Buyers aren’t choosing the P100D to save money on fuel; they’re buying it for its ludicrous acceleration, cutting-edge technology, and lower fuel costs, all wrapped in a sleek, desirable package.

City and highway performance

Breaking down the EPA numbers reveals 92 MPGe in the city and 105 MPGe on the highway. This difference, where highway MPGe is generally *higher* than city, is typical for electric vehicles. Regenerative braking plays a significantly larger role in stop-and-go city driving, converting kinetic energy back into battery power as you decelerate. On the highway, with less braking, the car relies more on its battery pack to maintain speed. These numbers reflect a driving style suited to the car’s character, a blend of aggressive launches and effortless cruising. The instant torque of the electric motors makes city driving particularly enjoyable, while the Model S’s aerodynamic profile helps it slice through the air efficiently at higher speeds.

Annual fuel cost

The EPA estimates an annual fuel cost of $800 for the 2019 Tesla Model S P100D. This calculation assumes 15,000 miles of driving per year, with a mix of city and highway travel, and uses the national average electricity prices. The actual cost for an owner can vary widely depending on electricity rates in their area, driving habits, and the percentage of charging done at home versus at public charging stations. Those who are able to charge primarily at home during off-peak hours, especially with solar power, can significantly reduce their “fuel” costs far below the EPA estimate.

Real-world expectations

While the EPA numbers provide a standardized benchmark, real-world MPGe can vary. Aggressive acceleration, frequent use of “Ludicrous” mode, and cold weather will all reduce efficiency and range. Conversely, gentle driving, preheating the cabin while plugged in, and using regenerative braking effectively can help you meet or even exceed the EPA estimates. The Tesla’s trip energy display provides detailed insights into your energy consumption, allowing you to adjust your driving style and optimize efficiency on the go.

How it compares

Compared to other high-performance luxury sedans, the Model S P100D stands alone in terms of efficiency. The Porsche Panamera Turbo S E-Hybrid, for example, achieves a combined 51 MPGe, while the Mercedes-AMG S63 gets a meager 19 MPG, and both require expensive premium gasoline. Even other electric vehicles like the Jaguar I-Pace (76 MPGe combined) don’t match the Model S’s efficiency. The choice to acquire a P100D is a statement about prioritizing lower fuel costs without sacrificing performance or luxury. The P100D provides that unique combination, something no fuel-burning competitor can offer.

Tips to maximize efficiency

One of the most effective ways to improve the Model S P100D’s efficiency is to use regenerative braking. Experiment with the “Standard” and “Low” settings to find the level of deceleration that suits your driving style. By anticipating stops and letting off the accelerator early, you can recapture significant amounts of energy and extend your range.

Preheating or precooling the cabin while the car is plugged in is another easy way to save energy. This allows the car to use grid power to reach your desired temperature, rather than drawing energy from the battery once you start driving. This is especially critical during the winter months, when heating the cabin can significantly reduce range.

Monitor your tire pressure regularly. Underinflated tires increase rolling resistance, which reduces efficiency. Keep your tires inflated to the recommended pressure, which can be found on the sticker inside the driver’s side doorjamb.

Minimize aerodynamic drag. Removing unnecessary items from the roof rack and ensuring the windows are closed at high speeds will help the car slice through the air more cleanly, improving efficiency. The Model S is already quite aerodynamic, but even small changes can make a difference.

Check out all Tesla fuel economy data or maybe you want to investigate MODEL MPG across all years.