98 MPG combined. On paper, that figure makes it seem like the 2018 Tesla Model S P100D rivals a Prius. In reality, it represents a quantum leap in performance and efficiency, delivered in a package that shatters preconceived notions about electric vehicles. Buyers aren’t cross-shopping this with a hybrid; they’re considering the P100D against high-performance luxury sedans from Germany and Italy, and discovering that leaving those antiquated powertrains behind unlocks a new level of speed paired with eye-opening efficiency.

City and highway performance

The EPA rates the 2018 Tesla Model S P100D at 92 MPG in the city and a startling 105 MPG on the highway. These figures highlight the advantages of electric powertrains. City driving, with its stop-and-go nature, allows for regenerative braking to recapture energy, boosting efficiency. Highway range is also strong thanks to the P100D’s large battery pack and relatively low drag coefficient. Of course, these MPG numbers are actually MPGe, or “miles per gallon equivalent,” a metric the EPA uses to compare the energy consumption of electric vehicles to gasoline-powered cars. It’s a useful comparison tool, even if there’s no actual gasoline involved.

Annual Fuel Cost

The EPA estimates the annual fuel cost for the 2018 Tesla Model S P100D at precisely $800. This is based on driving 15,000 miles per year, with a mix of city and highway driving, and using the national average electricity price. Remember that your actual costs may vary, depending on your local electricity rates and your driving habits. Charging at home overnight during off-peak hours can significantly lower your electricity bill, potentially bringing your annual energy costs down even further.

Many P100D owners also have solar panels, further reducing or even eliminating their charging expenses. The P100D buyer profile embraces technological advancement, and home energy solutions are often part of the equation.

Real-World Expectations

While the EPA figures provide a good baseline, real-world MPGe for the P100D can vary. Aggressive acceleration, frequent use of “Ludicrous mode,” and cold weather conditions can all decrease efficiency. However, even with spirited driving, most owners report energy consumption figures that remain impressive for a vehicle with this level of performance. Long trips at sustained high speeds will also impact range. Careful management of the car’s energy consumption, using the integrated energy monitor, can help drivers optimize their efficiency and extend their range when needed.

Many owners use the trip planner to calculate estimated arrival energy levels to gauge driving efficiency. The overall range of the P100D is more than sufficient for daily use and can be quickly replenished at Tesla Supercharger locations on those longer trips.

How It Compares

Compared to its gasoline-powered rivals, the 2018 Tesla Model S P100D’s efficiency is in a different league. A comparable Mercedes-AMG S63, for example, manages just 19 MPG combined. The Porsche Panamera Turbo S E-Hybrid, another high-performance plug-in hybrid, achieves 22 MPG combined. Even more fuel-efficient gasoline alternatives, such as the BMW 740e, get around 27 MPG combined.

The comparison isn’t just about saving money; it’s about reducing reliance on fossil fuels and embracing a more sustainable way of driving. The P100D buyer is often motivated by lower fuel costs, and the dramatic difference in fuel economy reinforces their decision to go electric over a traditional gas-powered luxury car. For a look at all Tesla fuel economy data, visit FuelEconomyHub and compare.

Tips to Maximize Efficiency

Take advantage of regenerative braking. The Model S P100D allows for adjustable levels of regenerative braking. Maximize the setting to recapture more energy during deceleration, essentially turning the motor into a generator and extending your range, especially around town. This feature not only enhances efficiency but also reduces wear on the brake pads.

Precondition the battery. In cold weather, the battery’s performance can be reduced, impacting range. Use the Tesla app to preheat both the cabin and the battery before you set off in the morning. This warms the battery to its optimal operating temperature while the car is still plugged in, drawing power from the grid instead of depleting the battery’s charge.

Drive smoothly and avoid aggressive acceleration. While the instantaneous torque of the P100D is exhilarating, frequent launches in “Ludicrous” mode will significantly impact your efficiency. Opt for smooth, controlled acceleration to conserve energy and maximize your range. Anticipate traffic flow and avoid unnecessary braking or acceleration.

Monitor your energy consumption. The Model S P100D provides real-time energy consumption data on the touchscreen. Pay attention to the graph and learn how different driving styles and conditions affect your range. Using this data, you can adjust your driving habits to optimize efficiency on long journeys, getting more MODEL MPG across all years.

Keep tires properly inflated. Underinflated tires increase rolling resistance, which reduces efficiency. Check your tire pressure regularly according to Tesla’s recommendations and inflate tires to the optimal pressure for the best range. This is a simple but effective way to improve your car’s fuel economy.