19 MPG combined is what you get with the 2021 BMW 750i xDrive. This isn’t a car for penny-pinchers. It’s a statement of success, a rolling office for executives, and a supremely comfortable long-distance cruiser. Owners prioritize effortless power and opulent luxury over maximizing fuel efficiency. The twin-turbo V8 is the centerpiece, and fuel consumption is a secondary, but relevant, concern.

City and highway performance

The 750i xDrive’s EPA ratings reflect its performance in different conditions. The 17 MPG city figure is a consequence of the 4.4-liter V8’s considerable thirst when navigating stop-and-go traffic. The all-wheel-drive system adds weight and drivetrain loss, impacting urban efficiency. On the open road, however, the 24 MPG highway rating becomes more attainable. Here, the smooth-shifting eight-speed automatic transmission and the engine’s ability to cruise effortlessly at higher speeds are important. This allows the 750i to cover long distances with relative composure, considering its potent engine and substantial curb weight.

Annual fuel cost

According to the EPA, the 2021 BMW 750i xDrive will cost its owner $3,050 annually in fuel. 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 uses the national average fuel price at the time of testing, which fluctuates, meaning real-world costs could be higher or lower depending on current fuel prices and individual driving habits. It is a useful benchmark for understanding the ongoing expense of operating this class of vehicle.

Real-world expectations

While the EPA estimates provide a standardized benchmark, real-world MPG for the 750i xDrive can vary significantly. Aggressive driving, frequent short trips, and prolonged idling will all negatively impact fuel economy. A driver who prioritizes smooth acceleration, anticipates traffic flow, and uses the car’s eco-mode setting may be able to achieve figures closer to or even slightly above the EPA estimates. Regular maintenance, including proper tire inflation and timely oil changes, also contributes to optimal fuel efficiency.

How it compares

The 750i’s fuel consumption places it within its competitive set. The Mercedes-Benz S580 4Matic, with its own twin-turbo V8, achieves similar EPA ratings around 16 MPG city and 25 MPG highway. The Audi A8, particularly V8-powered models, also competes closely in fuel economy. Even models like the Porsche Panamera, while offering a sportier driving experience, have comparable consumption when equipped with a V8. Buyers considering the 750i xDrive are likely cross-shopping these vehicles and understand that fuel efficiency isn’t a primary differentiator; performance, luxury, and brand cachet carry greater weight.

Tips to maximize efficiency

Although fuel economy may not be the top priority for 750i xDrive owners, there are steps to reduce consumption. Use the car’s driving mode selector to engage “Eco Pro” mode, which optimizes throttle response, transmission mapping, and climate control settings for maximum fuel efficiency. This mode is effective during highway cruising or stop-and-go city driving.

Gentle acceleration and braking are critical for maximizing fuel efficiency in any vehicle, but particularly the 750i. The twin-turbo V8 responds readily to throttle input, but excessive acceleration significantly increases fuel consumption. Anticipate traffic flow and maintain a smooth, consistent speed whenever possible.

Ensure that your tires are properly inflated to the recommended pressure specified on the door jamb sticker. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Regular tire pressure checks are an easy way to improve fuel efficiency and extend tire life. For all Bmw fuel economy data, visit FuelEconomyHub.com

Minimize idling time. Modern engines consume fuel even when stationary, and prolonged idling can quickly deplete fuel reserves. If you anticipate being stopped for more than a minute, it’s generally more fuel-efficient to turn off the engine and restart it when ready to proceed. For more information on the 750I MPG across all years, check out FuelEconomyHub’s model page.