The 2025 Audi S e-tron GT earns an EPA-estimated 90 MPG combined, a figure that redefines expectations for a performance-oriented grand tourer. This isn’t just a sensible, hyper-efficient economy car, it’s a sharp-handling machine with exhilarating acceleration and premium features, factors that make its efficiency noteworthy.

City and highway performance

Breaking down the 90 MPG combined rating reveals a split between city and highway driving. The S e-tron GT achieves 91 MPG in the city and 88 MPG on the highway. This slight advantage in urban environments underscores the effectiveness of regenerative braking, a technology that recovers energy during deceleration, converting it back into usable electricity. City driving, characterized by frequent stops and starts, allows for optimal regeneration, while steady-state highway cruising relies more on direct battery power. These numbers mean that the S e-tron GT is well suited for those who split their time between city and highway commutes equally, or who frequent the city more than the highway.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2025 Audi S e-tron GT at exactly $850. This calculation is based on driving 15,000 miles per year, using a blend of city and highway driving, and factoring in the national average electricity price. This figure is a benchmark; it will vary based on individual driving habits and local electricity rates. However, it provides a standardized way to compare the S e-tron GT’s running costs against other vehicles, showcasing a significant advantage over even the most efficient gasoline-powered performance cars.

Real-world expectations

While the EPA provides a standardized yardstick, real-world fuel economy always varies, and it is important to consider that these tests operate in ideal conditions with professional drivers. The S e-tron GT’s mileage is affected by factors such as driving style, ambient temperature, and terrain. Aggressive acceleration and high speeds consume more energy, while colder temperatures can reduce battery performance, lowering overall efficiency. In general, drivers can expect to see figures close to the EPA estimates with mindful driving habits.

How it compares

Compared to its internal combustion competitors, the S e-tron GT showcases a stark contrast in fuel consumption. For example, the Porsche Taycan 4S, a direct competitor, achieves around 79 MPGe combined. A gasoline-powered alternative like the BMW M5 achieves about 17 MPG combined in the real world. Those considering these similar vehicles must weigh the differences in performance and overall ownership experience alongside the substantial leap in fuel efficiency offered by the S e-tron GT. Head to our site for all Audi fuel economy data.

Tips to maximize efficiency

One effective strategy is to pre-condition the cabin while the vehicle is still plugged in. Using the grid’s energy instead of the battery’s to heat or cool the interior extends the driving range, especially in extreme weather conditions.

Gentle acceleration and smooth braking are crucial for maximizing efficiency in any electric vehicle. Avoid sudden bursts of speed and anticipate traffic flow to minimize braking and maximize regenerative energy capture. Using the “B” driving mode will further enhance regenerative braking and boost your city MPG.

Monitor tire pressure regularly. Underinflated tires increase rolling resistance, forcing the motor to work harder and reducing overall range. Ensure the tires are properly inflated to the manufacturer’s recommended pressure for optimal efficiency. Also, the wheel choice will greatly impact your range. The 20 inch wheels mentioned for this article may not be the most efficient size available, so consider that when purchasing.

Minimize aerodynamic drag. Remove unnecessary items from the roof, such as cargo carriers or bike racks, particularly on longer trips. High speeds increase drag exponentially, so maintaining a steady pace within the speed limit further optimizes efficiency. See S MPG across all years.

Become familiar with the S e-tron GT’s energy consumption display. Understanding how different driving behaviors affect efficiency provides valuable insights into maximizing range and minimizing energy waste. Engage with the vehicle’s technology to optimize your driving style.