19 MPG combined is the number anyone considering a 2015 BMW 550i xDrive Gran Turismo will see. It’s not great. But this isn’t a Prius, and the target audience for a V8-powered, all-wheel-drive, hatchback-sedan compromise isn’t prioritizing fuel sipping above all else. This MPG figure is the price of entry for a unique blend of performance, luxury, and practicality, a combination that, for a specific buyer, outweighs the pain at the pump.

City and highway performance

The EPA estimates reflect city driving with stop-and-go and more relaxed highway cruising. The 16 MPG city figure shows the inherent inefficiencies of a large-displacement engine managing considerable weight in an urban environment. All that power is seductive, but using it frequently will dramatically impact fuel consumption. Conversely, the 24 MPG highway rating showcases the engine’s ability to stretch a gallon when cruising at consistent speeds. Highway driving benefits from the 8-speed automatic transmission, which allows the engine to settle into a lower RPM range. Remember, any aggressive acceleration will quickly diminish those gains.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2015 BMW 550i xDrive Gran Turismo is $3,050. This figure is based on driving 15,000 miles per year and using the EPA’s projected national average fuel prices for premium gasoline. It’s critical to understand that this is an estimate; your actual fuel costs will vary depending on your driving habits, local fuel prices, and the specific conditions in which you drive. If you drive fewer miles, or can find cheaper fuel, your expenses will be less. But it’s unlikely anyone buying a 550i GT is content with cheap fuel.

Real-world expectations

While the EPA provides a standardized benchmark, real-world fuel economy often deviates. Expect to see numbers slightly below the EPA estimates, especially if you have a heavy foot or frequently drive in congested traffic. Short trips, cold weather, and mountainous terrain further diminish efficiency. On the other hand, adhering to speed limits and a conscious effort to drive smoothly will yield results closer to the EPA’s projections. Some owners report highway figures closer to 25-26 MPG on long trips when driven conservatively. Check 550I MPG across all years to see what actual drivers are self-reporting.

How it compares

Compared to other vehicles in the luxury hatchback segment, the 2015 550i xDrive Gran Turismo falls toward the less efficient end of the spectrum. For example, the Audi A7 3.0T, while not a direct competitor in terms of body style, offers similar practicality with a combined EPA rating of 23 MPG. Even the Porsche Panamera, particularly the hybrid variants, can deliver better fuel economy, with some models exceeding 25 MPG combined. Within BMW’s own lineup, the 535i xDrive models generally achieve several MPG higher than the 550i, sacrificing some performance for improved efficiency. Those cross-shopping might also be interested in all Bmw fuel economy data. The decision is whether the buyer prioritizes the 550i’s potent V8 or is willing to compromise some power for better mileage.

Tips to maximize efficiency

Take advantage of the driving mode selector. Selecting “Eco Pro” mode remaps the throttle response and shift points to prioritize fuel economy. While this mode diminishes acceleration, it can significantly improve MPG, especially in city driving. Eco Pro settings can be customized to your needs.

Monitor your tire pressure regularly. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Maintaining the recommended tire pressure, which can be found on the driver’s side doorjamb, is a simple yet effective way to improve efficiency. Note that the TPMS on this car is only a *warning* system, not an active pressure system. You still need to check the pressure manually.

Avoid unnecessary idling. Letting the engine idle for extended periods wastes fuel. If you anticipate a wait of more than a minute or two, turn off the engine. Modern engines do not require extended warm-up periods; simply start the engine and begin driving moderately.

Anticipate traffic flow. Looking ahead and anticipating changes in speed, you can minimize harsh acceleration and braking. Smooth, consistent driving is the key to maximizing fuel efficiency. Use cruise control on the highway whenever possible to maintain a steady speed and avoid unnecessary fluctuations in throttle input.

Keep the car properly maintained. A well-maintained engine runs more efficiently. Follow the manufacturer’s recommended maintenance schedule, including regular oil changes, air filter replacements, and spark plug inspections. These details can collectively impact fuel economy.