14 MPG combined is undeniably low. But let’s be clear: buyers considering a 2025 BMW XM 4.4L 8-cyl aren’t prioritizing fuel efficiency. They’re chasing a statement. A high-performance, aggressively styled plug-in hybrid SUV that screams power and exclusivity more than less gas. The XM operates in a realm where performance, design, and brand cachet outweigh concerns about frequent trips to the gas station. It’s a status symbol first, a hybrid (somewhat) second, and an economy car never.

City and highway performance

The EPA estimates the XM at 12 MPG in the city and 17 MPG on the highway. These figures reflect the nature of stop-and-go urban driving and the demands it places on a large, powerful engine, as well as the benefits afforded the hybrid system. The highway number is slightly better, as you might expect, but it’s still far from impressive for a modern vehicle. A portion of XM owners will likely do a significant amount of city driving, so 12 MPG is the more relevant figure to consider for daily usage. Aggressive driving in either environment will drive those numbers down even further, while more judicious uses of the electric range can nudge them higher.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2025 BMW XM 4.4L 8-cyl at $4,150. This figure is based on driving 15,000 miles per year at the EPA’s combined MPG rating, using national average fuel prices. Keep in mind that fuel prices fluctuate, and your individual driving habits will greatly influence your actual fuel expenses. The cost assumes no electric-only driving, so using the XM’s plug-in hybrid capability will certainly reduce this cost.

Real-world expectations

While the EPA’s numbers provide a standardized benchmark, real-world fuel economy often differs. The XM’s turbocharged V8 coupled with its electric motor can result in wildly varying MPG figures. Short trips with a fully charged battery might yield impressive efficiency, while extended highway runs with a depleted battery will see the fuel economy plummet. Expect to see numbers closer to the EPA’s figures in mixed driving conditions. Drivers with a heavy foot, eager to experience the XM’s power, will see even worse results. The key is to actively manage the hybrid system, prioritize electric driving when possible, and resist the temptation of constant full-throttle acceleration.

How it compares

The XM occupies a unique niche, but comparisons can be made. The Lamborghini Urus, a direct performance rival, achieves a combined 14 MPG, identical to the XM, reinforcing the idea that this segment isn’t focused on fuel efficiency. The Mercedes-AMG GLE 63 S Coupe is rated at 15 MPG combined. More relevant, perhaps, are plug-in hybrid SUVs like the Porsche Cayenne Turbo S E-Hybrid, which manages a combined 21 MPG, demonstrating the potential for better efficiency with a similar powertrain concept. The buyer of an XM is likely cross-shopping vehicles that deliver both visceral driving excitement and a bold image, so while they may note the fuel economy differences, it will likely be a less critical factor than performance metrics or styling.

Tips to maximize efficiency

The XM’s performance tempts aggressive driving, but resist the urge to stomp on the accelerator every time. Smooth, gradual acceleration helps the hybrid system operate more efficiently, relying on the electric motor as much as possible before bringing in the V8 engine. This approach is especially effective in city driving.

Take full advantage of the XM’s plug-in hybrid system. Keep the battery charged and prioritize electric-only driving for short trips and errands. This can significantly reduce fuel consumption and allow you to enjoy quiet running in certain situations. If you are curious about all Bmw fuel economy data, browse our ratings.

Familiarize yourself with the various driving modes. Experiment with settings, such as “Electric” and “Hybrid,” to optimize the powertrain for specific driving conditions. The “Electric” mode maximizes electric driving, while “Hybrid” balances electric and gasoline power for optimal efficiency. Drivers can also compare to XM MPG across all years.

Proper tire inflation is critical for fuel economy. Ensure your tires are inflated to the recommended pressure, as indicated on the tire placard. Underinflated tires increase rolling resistance, leading to higher fuel consumption. Maintaining correct pressures ensures optimal performance and efficiency.

Minimize unnecessary weight in the vehicle. Excess cargo adds to the vehicle’s overall weight, which in turn increases fuel consumption. Remove any items you don’t need, and avoid carrying heavy loads unless absolutely necessary.