17 MPG combined isn’t going to win any awards, but it’s also probably not the primary concern for anyone considering a 2020 BMW M5. This is a car built for blistering performance, an Autobahn stormer disguised as a (relatively) sensible sedan. The kind of buyer drawn to this car prioritizes horsepower, handling prowess, and the sheer thrill of driving above all else. Fuel economy is a secondary consideration, an acceptable trade-off for the M5’s immense capabilities.

City and highway performance

The EPA estimates the 2020 M5 at 15 MPG in the city and 21 MPG on the highway. The city rating reflects the M5’s tendency to encourage aggressive driving, stop-and-go traffic exacerbating its thirst for fuel. The highway figure, while better, is still far from hybrid sedans or even more economical performance models. Expect the M5 to be at its most frugal on long, steady-state highway cruises, but even then, resist the urge to unleash the twin-turbo V8’s full potential if you want to see numbers close to the EPA estimate. For more information on other models, you can find all Bmw fuel economy data on our site.

Annual fuel cost

The EPA estimates an annual fuel cost of $3,400 for the 2020 BMW M5, based on driving 15,000 miles per year and national average fuel prices. Keep in mind that premium fuel is required for optimal performance and longevity of the M5’s engine, so you’ll be paying more per gallon than those filling up with regular unleaded.

Driving habits also play a significant role. A heavy foot will quickly inflate that $3,400 estimate, while a more restrained approach can help keep fuel costs somewhat in check.

Real-world expectations

While the EPA provides a baseline, real-world MPG for the 2020 M5 often falls short of the official numbers. Aggressive acceleration, frequent use of Sport or Sport+ driving modes, and time spent in traffic will all negatively impact fuel consumption. Owners report averaging closer to 13-14 MPG in mixed driving conditions. Those who prioritize fuel efficiency and adopt a more conservative driving style might achieve closer to the EPA’s 17 MPG combined rating, but it requires conscious effort.

How it compares

Compared to its competitors, the M5’s fuel economy is predictably on the lower end. The Mercedes-AMG E63 S, another high-performance sedan, achieves 16 MPG combined. The Porsche Panamera Turbo, while offering similar levels of performance, posts 18 MPG combined in certain configurations. Even the Audi RS7, with its sleek coupe-like design and potent V8, manages 18 MPG combined. The M5 buyer likely acknowledges these differences and accepts the trade-off for the BMW’s specific blend of performance, handling, and driving feel. The fact that the M5 is less efficient than some rivals is unlikely to deter a buyer deeply committed to the BMW brand and the M5’s unique character. Considering other years of this car? Find the M5 MPG across all years.

Tips to maximize efficiency

Resist the urge to constantly exploit the M5’s immense power. Gentle acceleration and consistent speeds will significantly improve fuel economy. Anticipate traffic flow and avoid unnecessary braking and acceleration. The M5’s performance encourages aggressive driving so be mindful of your style if you want to maximize efficiency.

Use the M5’s Eco Pro driving mode when appropriate. This mode adjusts engine mapping and throttle response to prioritize fuel efficiency over outright performance. It won’t transform the M5 into a Prius, but it can make a noticeable difference on longer drives and highway cruises.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which negatively impacts fuel economy. Check your tire pressures regularly and maintain the recommended levels specified on the door jamb sticker.

Minimize idling. Avoid prolonged idling, especially in cold weather. Modern engines warm up quickly while driving, and idling wastes fuel. Turn off the engine if you anticipate being stationary for more than a minute or two.

Keep up with regular maintenance. A well-maintained engine runs more efficiently. Follow the manufacturer’s recommended maintenance schedule, including oil changes, air filter replacements, and spark plug inspections. A healthy engine is a more efficient engine.