101 MPGe combined. That’s the headline figure for the 2021 Tesla Model S Plaid with 21-inch wheels, and it redefines what “fuel economy” means in a performance car. This isn’t about saving money at the pump; it’s about achieving efficiency while delivering supercar acceleration. Buyers of the Model S Plaid, the ones signing seven-figure checks to own a street-legal rocket, aren’t overly concerned with fuel costs. That incredible MPGe figure translates into a genuine source of pride, proof that performance and responsible energy consumption can coexist.

City and highway performance

The Model S Plaid’s EPA ratings highlight its efficiency across driving scenarios. The city rating is 102 MPGe, reflecting the regenerative braking system’s effectiveness in stop-and-go traffic. This system captures kinetic energy during deceleration, converting it back into electricity and extending the car’s range. On the highway, the Model S Plaid achieves 99 MPGe, only slightly lower than its city rating. This shows the drivetrain’s efficiency even at higher speeds, where aerodynamic drag becomes a significant factor. These figures are estimates, and individual results will vary based on driving style, weather conditions, and terrain. However, they provide a benchmark for what to expect from the Plaid’s performance.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Tesla Model S Plaid (with 21-inch wheels) at $750. This figure is calculated based on driving 15,000 miles per year and using national average electricity prices. It’s a low number, considering the Plaid’s performance. While the initial purchase price is high, the long-term running costs are lower than comparable gasoline-powered vehicles. Of course, electricity prices vary regionally, so your actual cost may be higher or lower than this estimate. And if you charge primarily at home using solar power, your annual fuel cost could be even lower.

Real-world expectations

While the EPA estimates provide a baseline, real-world MPGe and range can fluctuate. Aggressive acceleration, frequent use of “Plaid” mode, cold weather (which reduces battery performance), and sustained high speeds on the highway will impact efficiency. Driving conservatively in moderate temperatures and using regenerative braking effectively can exceed the EPA estimates. Owners who commute in city environments and pre-condition the battery (heating or cooling it while plugged in) will see the best results. Ultimately, the Model S Plaid’s “fuel economy” depends on how you drive it.

How it compares

Comparing the Model S Plaid to traditional internal combustion engine (ICE) performance cars is striking. No gasoline-powered vehicle with comparable acceleration approaches its efficiency. For example, the Porsche Taycan Turbo S, another high-performance EV, gets an EPA-estimated 76 MPGe combined, and even the standard Tesla Model S Long Range achieves a higher MPGe rating. High-performance sedans running on Premium Unleaded, such as the BMW M5 Competition, struggle to achieve even 20 MPG in combined driving, highlighting the Plaid’s electric powertrain advantage. For those considering the Model S Plaid, this shows technology leadership and reduced environmental impact without sacrificing performance. Find all Tesla fuel economy data on this site, and find MODEL MPG across all years.

Tips to maximize efficiency

Pre-conditioning the battery is important, especially in extreme temperatures. Use the Tesla app to heat or cool the battery while the car is plugged in. This minimizes the energy required to reach operating temperature once you start driving, boosting efficiency.

Regenerative braking is important. Get familiar with the “Standard” and “Low” regen settings and use them. Anticipate traffic flow and use coasting and regenerative braking to slow down, rather than relying on the friction brakes. This maximizes energy recovery and extends your range.

Pay attention to tire pressure. Ensure your tires are inflated to the pressure specified on the door jamb sticker. Under-inflated tires increase rolling resistance and reduce efficiency. Consider using low-rolling-resistance tires when it’s time for replacements.

Minimize aerodynamic drag. If you’re not actively using the roof rack or other external accessories, remove them to reduce wind resistance. Avoid driving at sustained high speeds, as aerodynamic drag increases with speed.