The 2021 Tesla Model S Performance with 21-inch wheels gets 96 MPG combined, a figure that immediately signals this isn’t your average high-performance sedan. This kilowatt-per-mile figure isn’t about hypermiling; it’s about delivering high performance without needing to burn gasoline. This vehicle is designed for drivers who want fast acceleration and advanced technology, and who like the idea of never visiting a gas station.

City and highway fuel economy

The EPA rates the Model S Performance slightly higher in the city than on the highway, with an impressive 98 MPGe city and 93 MPGe highway. This result highlights the efficiency of electric powertrains in stop-and-go traffic. Regenerative braking captures kinetic energy during deceleration in the city, feeding it back into the battery and reducing the need to draw power from the grid. On the open road, the Model S is still efficient, but air resistance and constant higher speeds mean less opportunity for regeneration.

Annual fuel cost

The EPA estimates the annual “fuel” cost for the 2021 Tesla Model S Performance is $800. This is based on 15,000 miles of driving per year, using national average electricity prices. It’s a good figure, especially for those used to spending thousands annually on gasoline. Your actual charging costs will depend on your local electricity rates, driving habits, and where you primarily charge, whether at home, at public charging stations, or a combination.

Real-world expectations

The EPA numbers provide a benchmark, but real-world range and efficiency can vary. Ambient temperature, driving style, and the use of features like air conditioning and “Ludicrous” mode all affect efficiency. Fast acceleration drains the battery faster, and so does sustained high-speed driving. Headwinds and cold weather will also decrease efficiency. However, many owners report achieving numbers close to the EPA estimates by driving carefully and using Tesla’s regenerative braking system. Consistent and informed use leads to better efficiency, as with any vehicle. You can view all Tesla fuel economy data here.

How it compares

The Model S Performance exists in a different category compared to traditional high-performance sedans. A BMW M5, for example, gets just 17 MPG combined. The Mercedes-AMG E63 S gets 19 MPG combined. These vehicles offer high performance, but they use a lot of gasoline. Even hybrid performance sedans like the Porsche Panamera 4 E-Hybrid, with its combined 22 MPG rating, can’t match the Model S Performance’s efficiency. The Model S owner pays more upfront for the technology, performance, and long-term operating cost savings that come with an electric vehicle. Comparison to a more pedestrian MODEL MPG across all years is less relevant, as the Performance model prioritizes power and responsiveness.

Tips to maximize efficiency

Use regenerative braking. The Model S Performance allows for adjustable levels of regen. Try the settings to find what works best for your driving style and maximize energy recapture, reducing your use of the friction brakes. One-pedal driving, where lifting off the accelerator slows the car significantly, can become easy and improve efficiency a lot.

Precondition the battery. On cold mornings, use the Tesla app to preheat the battery before you leave. Warming the battery to its optimal operating temperature while still plugged in will reduce energy consumption during your drive.

Check tire pressure. Properly inflated tires reduce rolling resistance and improve efficiency. Check your tire pressure regularly and ensure it meets the recommended specifications listed on the door jamb. Tesla’s in-car monitoring system makes this easy.

Reduce aerodynamic drag. The 21-inch wheels look good, but they do reduce efficiency slightly compared to the standard wheel size. Think about your driving needs and prioritize efficiency when possible. Avoid carrying unnecessary weight in the vehicle, as this also increases energy consumption.