| Engine | 4.4L 8-cyl |
| Transmission | Automatic (S8) |
| Drive | All-Wheel Drive |
| Fuel Type | Premium Gasoline |
| Vehicle Class | Subcompact Cars |
| Engine Desc | SIDI |
| Start-Stop | No |
| EPA Vehicle ID | 37374 |
19 MPG combined isn’t going to win any awards for less gas, but for the 2017 BMW 650i xDrive Coupe with its 4.4L V8, it’s a figure that owners likely acknowledge with a shrug before flooring it. This car isn’t about saving the planet; it’s about effortless power, luxurious features, and Bavarian engineering. The typical 650i buyer is purchasing a statement, a grand tourer capable of crossing continents quickly and comfortably. They prioritize performance and prestige over fuel sipping.
City and highway performance
The EPA estimates the 2017 650i xDrive Coupe at 16 MPG in the city and 24 MPG on the highway. The difference between these figures highlights the engine’s character. In stop-and-go traffic, the large displacement V8 works harder, and its thirst becomes more apparent. Out on the open road, where it can cruise at lower RPMs, the fuel economy improves significantly, showing its ability to deliver respectable mileage when not under heavy load. The eight-speed automatic transmission contributes to the highway efficiency, keeping the engine in its sweet spot.
Annual fuel cost
According to the EPA, the annual fuel cost for the 2017 BMW 650i xDrive Coupe is approximately $3,050. This figure is based on driving 15,000 miles per year, with a percentage of those miles driven in both city and highway conditions, and using the national average fuel price at the time of calculation. Buyers considering this car should factor this cost into their ownership expenses, understanding that aggressive driving habits will likely push that number even higher. It’s a significant expense, but often a secondary consideration for those drawn to the 650i.
Real-world expectations
While the EPA provides a standardized estimate, real-world fuel economy can vary significantly based on driving style, traffic conditions, and terrain. A lead-footed driver enjoying the V8’s power at every opportunity will undoubtedly see lower numbers, perhaps struggling to hit the EPA’s 16 MPG city rating. Conversely, someone who predominantly uses the 650i for longer highway trips and practices smooth acceleration could potentially exceed the 24 MPG highway figure. Expect a range, and understand that the lure of the engine’s performance can often trump fuel-conscious driving.
How it compares
The 2017 BMW 650i xDrive Coupe exists in a niche segment of luxury coupes, and its fuel economy reflects that. Compared to its rivals, the numbers tell a story. For example, the Mercedes-Benz S550 Coupe, with its similarly potent twin-turbo V8, achieves an EPA-estimated 17 MPG city and 26 MPG highway. The difference is minimal enough that it likely wouldn’t sway a buyer one way or the other. The Audi S7, with its smaller-displacement V8, manages a slightly better 17 MPG city and 27 MPG highway. These differences are important for some buyers, but typically, purchasing decisions in this class are based on aesthetics, brand loyalty, and driving experience, more so than by a couple of MPG points. Comparing all Bmw fuel economy data provides further context, while examining the 650I MPG across all years will reveal how efficiency has evolved over time.
Tips to maximize efficiency
Resist the urge to constantly use the V8’s power. The 4.4L engine is incredibly responsive, but every hard acceleration run burns fuel. Instead, focus on smooth, gradual acceleration, allowing the eight-speed automatic to shift early and keep the engine in its most efficient RPM range.
Take advantage of the 650i’s driving modes. The “Eco Pro” mode alters the throttle response and shift patterns to prioritize fuel efficiency. While it might dampen the car’s sporty feel, it can make a noticeable difference on longer journeys, particularly on the highway. Engage it when performance isn’t a primary concern.
Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended pressure listed on the door jamb.
Minimize unnecessary weight. Carrying extra cargo in the trunk adds weight, which forces the engine to work harder. Remove any items you don’t need to improve fuel efficiency, especially if you are concerned about maximizing economy.
Consider the use of cruise control on highway trips. Maintaining a consistent speed minimizes unnecessary acceleration and deceleration, leading to improved fuel economy. Use cruise control wisely, and disengage it in heavy traffic or when encountering hilly terrain.