86 MPG combined. That figure seems almost unbelievable for a vehicle that can launch from 0 to 60 mph in a blistering 2.5 seconds and offers seating for up to seven. Yet, that’s exactly what the 2021 Tesla Model X Performance with 22-inch wheels delivers, according to the EPA. This number requires context. This is an electric vehicle, meaning that “MPG” actually refers to MPGe, or miles per gallon equivalent, a metric designed to compare the energy consumption of EVs to traditional gasoline-powered cars. Owners of the Model X Performance aren’t primarily driven by fuel savings; they prioritize performance, technology, and the Tesla brand, accepting the realities of charging and range as part of the ownership experience. They might cross-shop this with a high-performance SUV that gets single-digit MPG and view the Model X as a responsible choice despite its size and footprint.

City and highway performance

The 2021 Model X Performance showcases impressive efficiency in both city and highway driving scenarios. The EPA estimates 89 MPGe in the city and 83 MPGe on the highway. The higher city MPGe comes from regenerative braking, a system that captures energy during deceleration and feeds it back into the battery. This is most effective in stop-and-go traffic, giving the Model X a considerable advantage over gasoline-powered alternatives.

On the highway, the Model X maintains a respectable 83 MPGe, due to its aerodynamic design and efficient electric motors, although high-speed driving will deplete the battery faster than lower-speed city driving.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Tesla Model X Performance (22in Wheels) at exactly $900. This calculation is based on 15,000 miles of driving per year, using the national average electricity price. It’s important to understand that this figure is highly susceptible to change based on individual driving habits, local electricity rates, and the percentage of charging done at home versus at more expensive public charging stations. Drivers who primarily charge at home during off-peak hours can expect to pay significantly less than $900 per year. Conversely, those who rely heavily on public charging, especially during peak hours, may find their annual “fuel” costs exceeding the EPA estimate.

Real-world expectations

While the EPA provides a standardized benchmark, real-world MPGe for the 2021 Model X Performance can vary. Factors such as driving style, ambient temperature, and the use of features like “Ludicrous Mode” all influence efficiency. Aggressive acceleration and high speeds reduce range, while energy-intensive features drain the battery quicker. Owners in colder climates will also see a drop in MPGe, as battery performance diminishes in cold temperatures, and the car uses energy to heat the cabin and battery pack. Ultimately, consistent and conservative driving habits, coupled with strategic charging practices, are critical for achieving optimal efficiency.

How it compares

Compared to its gasoline-powered rivals, the 2021 Tesla Model X Performance holds a significant advantage in fuel economy. Consider the Porsche Cayenne Turbo S E-Hybrid, a performance SUV with similar aspirations. It achieves a mere 18 MPG combined, a stark contrast to the Model X’s 86 MPGe. Even a more conventional SUV like the BMW X5 M, delivering around 15 MPG combined, falls far short. These differences highlight the core appeal of the Model X: high performance without excessive gas. See all Tesla fuel economy data to compare across the entire model range, and see MODEL MPG across all years. Buyers in this segment might also cross-shop the Audi e-tron, an all-electric SUV, which offers a more conventional SUV experience and may get closer to 78 MPGe. This alternative showcases the tradeoff between Tesla’s performance and other EVs efficiency; some drivers may prefer the Audi’s approach while others are happy to accept less range for the raw power delivery of the Model X Performance.

Tips to maximize efficiency

Use regenerative braking to your advantage. The Model X features adjustable regenerative braking settings. Experiment to find the setting that best suits your driving style and traffic conditions. Maximize regenerative braking around town to recapture more energy and reduce reliance on the friction brakes.

Precondition the battery before driving. If possible, preheat or precool the cabin and battery while the vehicle is still plugged in. This reduces the energy demand on the battery once you start driving, especially in extreme temperatures.

Monitor your tire pressure regularly. Properly inflated tires reduce rolling resistance, improving efficiency. Check your tire pressure at least once a month and inflate them to the recommended pressure listed on the doorjamb sticker.

Limit aggressive acceleration. While the Model X Performance is capable of breathtaking acceleration, repeated launches in “Ludicrous Mode” will significantly deplete the battery. Drive smoothly and avoid unnecessary bursts of speed to conserve energy.

Plan your trips strategically. When embarking on long journeys, map out charging stations in advance and factor in charging time. Use Tesla’s navigation system, which automatically suggests charging stops based on your destination and current battery level.