The 2025 Audi A5 Sportback S line quattro 2.0L 4-cyl gets 26 MPG combined, a reasonable number for a stylish, all-weather luxury vehicle. This car doesn’t prioritize hybrid economy; it focuses on attainable luxury for those who value design and driving experience alongside practicality. For this buyer, 26 MPG is an acceptable balance.

City and highway performance

The EPA estimates the A5 Sportback S line quattro at 23 MPG in the city and 32 MPG on the highway. The city figure reflects the frequent stop-and-go of urban driving, where the quattro all-wheel-drive system and automatic transmission operate often, affecting efficiency. On the open road, the A5 Sportback’s aerodynamic shape and well-calibrated transmission help it get more miles per gallon. The highway number is respectable for a vehicle in this class.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2025 Audi A5 Sportback S line quattro at $2,250. This is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs may vary depending on your driving habits, the type of fuel you use, and local fuel prices. If you primarily drive in the city or drive aggressively, expect this number to be higher. However, this provides a good comparison point to show the A5 Sportback’s running costs compared to other vehicles. See all Audi fuel economy data here.

Real-world expectations

While the EPA estimates are a benchmark, real-world fuel economy often differs. Driving style, traffic, and even tire pressure can change the MPG you achieve. Drivers who frequently use the A5 Sportback’s sport mode or regularly carry passengers and cargo may see numbers closer to the low end of the EPA range; however, those with a lighter touch and mainly highway commutes might exceed the 32 MPG estimate. Most drivers of the A5 Sportback S line quattro will find their fuel economy is between the EPA city and highway ratings.

How it compares

The A5 Sportback S line quattro competes in a crowded market. The BMW 430i xDrive Gran Coupe offers similar performance and all-wheel drive, with an EPA-estimated 28 MPG combined. The Mercedes-Benz C300 4MATIC Sedan delivers comparable luxury and technology, achieving around 27 MPG combined. Even Acura’s TLX SH-AWD, although positioned slightly lower in the luxury class, gets around 24 MPG combined. If you are considering other models, take a look at A5 MPG across all years. The Audi buyer wants style and practicality, and is prepared to accept a small MPG difference compared to its rivals for the A5’s style and sleek design.

Tips to maximize efficiency

Consistent maintenance is key to getting good gas mileage. Make sure your tires are inflated to the recommended pressure on the driver’s side doorjamb. Underinflated tires increase rolling resistance, which makes the engine work harder and burn more gas.

Avoid aggressive driving. Quick acceleration and hard braking decrease fuel efficiency. Watch traffic and keep a regular speed when you can. The A5 Sportback’s engine can be tempting to accelerate, but a gentle touch will save fuel.

Minimize idling. If you are stopped for more than a minute, turn off the engine. Modern engines restart easily, and idling wastes fuel and increases emissions. This is important in cities, where idling is more common.

Use the A5 Sportback’s drive select modes. The “Efficiency” mode changes vehicle systems for fuel savings, including throttle response and transmission mapping. You might give up some performance, but you’ll see better MPG, especially on long trips.

Remove weight from the car, as extra weight reduces fuel economy. A lighter car uses less energy to accelerate and maintain speed. Clean out the trunk and only carry essentials.