18 MPG combined won’t win any hypermiling contests, but let’s be honest, no one buys a 2017 Audi RS 7 expecting Prius-like efficiency. This is a snarling, turbocharged, all-wheel-drive missile cloaked in a subtly elegant fastback design. Its purpose isn’t sipping fuel; it’s delivering breathtaking performance. The fuel consumption is the price of admission to a very exclusive club, and RS 7 owners are perfectly happy to pay it.

City and highway performance

The EPA estimates for the 2017 RS 7 break down to 15 MPG in the city and 25 MPG on the highway. That city figure reflects the reality of stop-and-go traffic, where the RS 7’s hefty curb weight and powerful engine work against it. The highway number, however, is more respectable. With its long gearing and surprisingly relaxed demeanor at cruising speeds, the RS 7 can stretch a gallon further than you might expect. Even so, that 25 MPG figure requires a disciplined right foot and a willingness to resist the temptation of unleashing all 560 horsepower.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2017 Audi RS 7 is $3,200. This figure is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway. The calculation also uses the national average fuel price at the time of the estimate, which can fluctuate significantly. For owners who frequently exceed 15,000 miles or primarily drive in areas with higher fuel costs, the actual annual expense will likely be greater.

Real-world expectations

While the EPA estimates provide a baseline, real-world fuel economy for the 2017 Audi RS 7 will vary significantly depending on driving habits. If you’re constantly exploiting the car’s performance potential, expect to see numbers closer to the city estimate, or even lower. Owners who spend more time on the highway and employ a gentler driving style might approach the 25 MPG figure, but achieving it consistently will be a challenge. Ultimately, anyone considering an RS 7 needs to accept that fuel economy is a secondary concern. Exhilarating performance and distinctive style are the priorities.

How it compares

Compared to its direct competitors, the RS 7’s fuel economy is about what you’d expect for this type of machine. The BMW M6 Gran Coupe, for example, also with a high-performance V8, is rated at 17 MPG combined. The Mercedes-AMG CLS63 S, another contender in the four-door coupe segment, achieves a similar 18 MPG combined. Even considering newer performance sedans, the Porsche Panamera Turbo offers similar performance, but fuel economy doesn’t stray far from the values the RS 7 obtains. These numbers show that the RS 7 competes in a realm where power and luxury take precedence over efficiency.

Tips to maximize efficiency

While the 2017 Audi RS 7 isn’t designed for optimal fuel economy, there are still steps you can take to minimize consumption. Avoid aggressive acceleration and braking, as these actions dramatically reduce efficiency. Smooth, steady driving is key to squeezing the most miles out of each gallon.

Take advantage of the Audi Drive Select system. Selecting the “Efficiency” mode (if equipped; otherwise, “Comfort”) will alter the engine and transmission mapping to prioritize fuel savings. While it may make the throttle response a little less sensitive, it can noticeably improve MPG in everyday driving. Try turning off the “Dynamic” option when the car is set to this setting to ensure the best fuel economy possible.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which can negatively impact fuel economy. Check your tire pressures regularly and maintain them at the recommended levels. This simple action can make a noticeable difference.

Minimize idling. Letting the engine idle for extended periods consumes fuel without covering any distance. If you’re stopped for more than a minute or two, such as at a long traffic light, consider turning off the engine. Although the RS 7 enjoys rapid acceleration, excessive idling causes poor and inefficient fuel consumption.

Keep up with routine maintenance. Regular oil changes, air filter replacements, and spark plug maintenance will ensure that your RS 7’s engine is running efficiently. Neglecting these tasks can lead to decreased performance and increased fuel consumption. Check all Audi fuel economy data to get the best mileage possible.