The 2020 Tesla Model X Performance with 20-inch wheels has an EPA-estimated 90 MPG combined; this makes it an efficiency champion in a segment not typically known for low fuel consumption. That high number, however, reflects its all-electric powertrain, meaning this vehicle doesn’t consume gasoline. Instead, it converts kilowatt-hours into forward motion while offering blistering acceleration and seating for up to seven. This isn’t about stretching a gallon of gas; it’s about minimizing energy consumption from the grid, which, depending on your electricity source, can translate to lower emissions and running costs than even the most efficient hybrids.

City and highway performance

The EPA estimates the 2020 Tesla Model X Performance at 90 MPG in the city and 89 MPG on the highway. These figures are artificially inflated due to the way electric vehicle efficiency is represented for comparison against gasoline vehicles. These numbers are more representative of the vehicle’s energy consumption per mile than actual “MPG.” What matters more to Model X owners is the range, which is impacted by driving style, ambient temperature, and terrain. City driving, with its regenerative braking opportunities, tends to deliver closer to the rated range, while sustained high-speed highway driving can drain the battery more quickly. If you frequently use the “Performance” aspect of this Model X, you’ll likely see a noticeable dip in range because its quick acceleration demands significant energy.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Tesla Model X Performance (20in Wheels) at $850. This figure is calculated based on 15,000 miles driven annually, using the national average electricity price at the time of calculation. This is just an estimate, and your actual energy costs may vary depending on your local electricity rates, driving habits, and charging patterns. If you charge primarily during off-peak hours, you may pay significantly less than $850 per year. On the other hand, frequent Supercharger use, especially during peak hours, could push your “fueling” costs higher.

Real-world expectations

While the EPA figures offer a useful benchmark, real-world energy consumption can change significantly. Temperature plays a major role, as battery performance can degrade in extreme cold or heat. Pre-conditioning the battery while plugged in can help reduce this effect. Aggressive driving, frequent use of “Ludicrous” mode, and carrying heavy loads will also reduce the overall range. Monitor your energy consumption via the Tesla’s onboard display and adjust your driving accordingly to maximize efficiency. Understanding your typical driving patterns and adjusting charging habits to match will help you to maximize savings.

How it compares

Compared to other large SUVs, the 2020 Tesla Model X Performance stands alone in terms of efficiency because it’s electric. The closest comparisons are other electric SUVs, such as the Jaguar I-Pace (76 MPG combined) or the Audi e-tron (78 MPG combined). Traditional gasoline-powered SUVs, like the BMW X5 xDrive40i (23 MPG combined) or the Mercedes-Benz GLE 350 (22 MPG combined), are dramatically less efficient. Even hybrid SUVs such as the Lexus RX 450h (31 MPG combined) can’t match the Model X’s efficiency, though they do offer a more familiar refueling experience. The Model X buyer prioritizes performance and technology. They accept, and often embrace, the charging requirements and the slightly different definition of “fuel” economy. For these buyers, the lower running costs and benefits of electric driving are a significant incentive.

Tips to maximize efficiency

Optimize your use of regenerative braking. The Model X offers adjustable regenerative braking modes; experiment to find the setting that allows you to slow down smoothly and recapture the most energy without using the brake pedal excessively. Anticipate traffic flow to avoid unnecessary acceleration and braking, allowing the regenerative braking system to function most effectively.

Minimize aerodynamic drag. Remove unnecessary items from the roof rack or cargo area; these additions increase wind resistance and reduce efficiency. Make sure your tires are properly inflated to the manufacturer’s recommended pressure. Correct tire pressure minimizes rolling resistance and improves overall energy efficiency.

Precondition the battery before driving, especially in cold weather. Use the Tesla app to warm up the battery while the car is plugged in. This will improve battery performance and range, as well as cabin comfort. A cold battery is a less efficient battery, so preconditioning is critical for maximizing range in winter.

Plan your trips strategically, especially on longer journeys. Use Tesla’s navigation system, which factors in elevation changes and charging locations along your route. This helps you to optimize charging stops and minimize delays. Don’t forget to check out all Tesla fuel economy data.

Consider the impact of wheel size on range. While the 20-inch wheels on the Performance model look sporty, larger wheels generally result in slightly reduced range compared to smaller options. If maximum efficiency is important to you, opting for smaller wheels or using aftermarket aero covers can offer a marginal improvement. You can compare the MODEL MPG across all years to see if there are any variants to compare.