16 MPG combined is what you get with a 2017 BMW M6 Coupe. No one buys this car for fuel efficiency. They buy it for the snarling 4.4L twin-turbo V8, the razor-sharp handling, and the undeniable presence that only a high-performance BMW coupe can offer. Fuel economy is simply a cost, a price willingly paid for the privilege of piloting a machine that can obliterate a quarter mile in the low 12s.

City and highway performance

The M6’s EPA ratings show 14 MPG in the city and 20 MPG on the highway. The low city MPG reflects the constant stop-and-go driving where the turbochargers are never fully spooled and the engine is always working to overcome the M6’s weight. The 20 MPG highway figure is more palatable, but still unspectacular. This car begs to be driven hard, and resisting that urge in the name of fuel conservation is a difficult task for any M6 owner. The seven-speed dual-clutch automatic transmission (AM-S7) manages the power efficiently enough, but it can’t defy the laws of physics when you unleash those 560 horses. If you curious about M6 MPG across all years, do some research.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 BMW M6 Coupe at $3,600. 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. It also assumes the use of premium fuel, which is a requirement for optimal performance and long engine life from the high-strung V8. This cost is calculated using the national average fuel prices at the time of the EPA’s testing and publication of this data. Whether that is high or low compared to current premium fuel prices is another consideration.

Real-world expectations

Expect your fuel economy to change significantly based on your driving style. Those who treat the M6 as a daily commuter and resist the urge to exploit its performance capabilities might see numbers close to the EPA estimates. But anyone who regularly engages the M6’s Sport or Sport+ modes, enjoys spirited acceleration, or frequents track days will likely see their fuel economy plummet. Sub-10 MPG is not out of the question during aggressive driving. The M6 ownership experience is defined by performance, not fuel savings, and most owners accept this tradeoff.

How it compares

Compared to its competitors, the M6’s fuel economy is generally in line with expectations for a high-performance coupe. The Mercedes-AMG E63 S Coupe, with its similar 4.0L twin-turbo V8, achieves roughly the same combined MPG as the M6. The Cadillac CTS-V, with its supercharged 6.2L V8, also sits in the same ballpark. Even going back to the M6’s contemporaries, all Bmw fuel economy data shows similar comparative numbers across the range of M-badged vehicles. These cars prioritize performance over efficiency, and their fuel consumption reflects that. Buyers in this segment aren’t cross-shopping with hybrids; they’re comparing lap times, acceleration figures, and horsepower numbers. A few MPGs difference has little bearing on their final decision.

Tips to maximize efficiency

While the M6 isn’t designed for fuel sipping, there are still ways to marginally improve your MPG. Avoid aggressive acceleration and hard braking. Smooth, deliberate driving will help keep the turbos spooled down and minimize fuel consumption. Use the Eco Pro mode, if equipped, which adjusts throttle response and transmission settings to prioritize fuel efficiency.

Ensure your tires are properly inflated to the recommended pressure. Underinflated tires increase rolling resistance, which negatively impacts fuel economy. Check tire pressure regularly, especially before long drives. Also, regular maintenance, including oil changes and air filter replacements, ensures that the engine is running at peak efficiency.

Minimize idling time. Idling consumes fuel without covering any distance. Turn off the engine if you anticipate being stationary for more than a minute. Reduce excess weight in the vehicle. Carrying unnecessary cargo increases the load on the engine and reduces fuel economy. Remove any items that aren’t essential for your daily commute or errands.

Plan your routes strategically to avoid congested areas and traffic delays. Stop-and-go traffic hurts fuel economy. Consider using navigation apps to find alternative routes that minimize idling and maximize consistent driving speeds. While these tips won’t transform the M6 into a Prius, they can help save a few dollars at the pump and reduce your gas consumption a bit.