23 MPG combined doesn’t scream “economy car,” especially in 2024. But for the Audi S5 Sportback, a sleek, performance-oriented hatchback draped in luxury, it’s a respectable compromise. This isn’t a car for hypermilers; it’s a car for those who relish the punch of a turbocharged V6, the surefootedness of all-wheel drive, and the practicality of a rear hatch, all wrapped in a stylish package. The S5 Sportback buyer knows they could get more MPG elsewhere, but they’re prioritizing passion and panache. They understand that performance has a price, and they’re willing to pay it.

City and highway performance

The S5 Sportback’s EPA estimates break down to 20 MPG in the city and 29 MPG on the highway. The city figure reflects the reality of stop-and-go traffic, where the engine spends more time idling or accelerating from a standstill. The S5 Sportback’s automatic transmission, though quick-shifting and responsive, can’t fully mitigate the fuel consumption demands of urban driving. However, the highway number is more encouraging. At cruising speeds, the engine settles into a more efficient rhythm, and the aerodynamic shape of the Sportback helps to minimize drag, allowing it to approach the 30 MPG mark promised by the EPA.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2024 Audi S5 Sportback is estimated at $2,500. This figure is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that these are just estimates. Your actual fuel costs will vary depending on your driving habits, the type of fuel you use (premium is recommended for optimal performance), and local fuel prices. Aggressive driving, frequent short trips, and higher-than-average gas prices will all contribute to a higher annual fuel bill. Conversely, gentle acceleration, consistent highway driving, and lower fuel costs could bring that figure down. The $2,500 figure provides a useful benchmark, but it’s important to consider your own specific circumstances.

Real-world expectations

While the EPA estimates are a good starting point, real-world MPG often differs. Factors like driving style, traffic conditions, and even tire pressure can influence fuel economy. Owners can reasonably expect to see figures close to the EPA estimates under normal driving conditions. However, those who frequently indulge in the S5 Sportback’s performance potential, enjoying the surge of power under acceleration or pushing the car through winding roads, should anticipate lower MPG. Conversely, those who prioritize efficiency and adopt a more conservative driving style might even exceed the EPA’s highway estimate. The key is to drive smoothly, avoid excessive idling, and maintain proper tire inflation.

How it compares

The S5 Sportback lives in a competitive segment. The BMW 440i Gran Coupe xDrive, a direct rival, achieves a similar 25 MPG combined. The Mercedes-AMG C43 Coupe offers a sportier experience but sacrifices some efficiency at around 22 MPG combined. Stepping outside of the German brands, the Acura TLX Type S, with its powerful turbocharged engine, lands around 21 MPG combined. The S5 Sportback carves out a neat niche, balancing acceptable fuel consumption with engaging driving experience and a handsome, practical body. The choices made by each manufacturer reflect different customer needs; for example, the TLX’s less refined luxury is a sacrifice some buyers are willing to make for higher performance.

Tips to maximize efficiency

Minimize aggressive acceleration. The S5 Sportback’s turbocharged engine delivers impressive power, but rapid acceleration consumes significantly more fuel. Gentle, progressive acceleration allows the engine to operate more efficiently, maximizing MPG. Use the car’s drive mode selector to choose the ‘Efficiency’ setting when possible, as this optimizes engine and transmission settings for fuel conservation.

Maintain proper tire pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and reducing fuel economy. Check your tire pressure regularly and inflate them to the recommended level (found on the sticker inside the driver’s side doorjamb). This simple step can improve MPG by a noticeable margin and improve handling, too.

Reduce unnecessary weight. Carrying extra weight in your vehicle decreases fuel efficiency. Remove any unnecessary items from the trunk and passenger area to lighten the load.

Avoid excessive idling. Idling wastes fuel and produces emissions. If you anticipate being stopped for more than a few seconds, turn off the engine. Modern cars are designed to restart quickly and efficiently, with minimal impact on components like the starter. This is especially helpful in traffic situations.

Plan your trips strategically. Combine errands into a single trip to minimize cold starts, which consume more fuel. Plan routes that avoid congested areas and prioritize smooth, consistent driving.

For anyone seeking all Audi fuel economy data, this information is publicly available for current and prior models. If you are concerned about the S5’s MPG in context of older versions, review the S5 MPG across all years for the model.