18 MPG combined isn’t going to win any green awards, but it’s the price you pay for the 2016 BMW 650i xDrive Gran Coupe’s unique blend of style, performance, and exclusivity. This isn’t a car for hypermilers; it’s a statement piece for those who prioritize driving pleasure and head-turning design over outright fuel efficiency. It’s a vehicle for those who value the sonorous rumble of a twin-turbo V8 more than the whisper-quiet hum of a hybrid.

City and highway performance

The official EPA figures peg the 650i xDrive Gran Coupe at 15 MPG in the city and 24 MPG on the highway. The city figure reflects the engine’s thirst when navigating stop-and-go traffic, where the 4.4-liter V8 is constantly modulating its power output. The highway number, while seemingly low for a modern car, is more representative of relaxed cruising. However, exploit the engine’s strong power for quick overtaking maneuvers and that 24 MPG figure will quickly diminish.

Annual fuel cost

The EPA estimates that the 2016 BMW 650i xDrive Gran Coupe will cost $3,200 per year in fuel. This figure is based on driving 15,000 miles annually, with 55% of those miles driven in the city and 45% on the highway. The EPA also uses a national average fuel price to calculate this cost, which will fluctuate significantly based on your location and driving habits. While a hefty sum, prospective buyers understand and accept this as part of the ownership experience.

Real-world expectations

Expect your MPG to vary depending on your driving style. If you frequently engage in spirited driving, with rapid acceleration and aggressive braking, achieving the EPA’s combined figure of 18 MPG will be a challenge. However, if you adopt a more moderate approach, using the engine’s ample torque for effortless cruising, you might see slightly better results. Remember, the 650i’s all-wheel-drive system constantly juggles power distribution, impacting fuel consumption as it optimizes grip. Aggressive winter driving will see a significant MPG decrease.

How it compares

Compared to other vehicles in its class, the 650i’s fuel economy is squarely in line with expectations. The Audi S7, with its 4.0-liter TFSI V8, achieves a similar 17 MPG combined. The Mercedes-Benz CLS550, another four-door coupe contender, is rated at 20 MPG combined, slightly better but at the cost of a less engaging driving experience. Even BMW’s own M6 Gran Coupe, with its even more powerful engine, returns almost identical fuel economy. For those seeking greater efficiency, looking at 650I MPG across all years may reveal more economical options within the 6 Series lineup, although at the expense of the V8 engine.

Tips to maximize efficiency

Take advantage of the 650i’s Driving Dynamics Control system. Selecting “Eco Pro” mode will remap the throttle response and shift points to prioritize fuel efficiency. While it will dampen the car’s sporty character, it can make a noticeable difference on longer journeys.

Ensure that your tires are properly inflated. Underinflated tires increase rolling resistance, which directly impacts fuel consumption. Check your tire pressure regularly, and maintain the pressure recommended on the doorjamb sticker.

Avoid unnecessary idling. If you’re stopped for more than a minute or two, turn off the engine. Modern engines are designed to be restarted without significant wear and tear, and idling wastes fuel unnecessarily.

Use cruise control on the highway. Maintaining a consistent speed can help minimize fuel consumption. However, be mindful of traffic conditions and avoid excessive speed fluctuations.

Keep up with regular maintenance. A well-maintained engine runs more efficiently. Follow the manufacturer’s recommended service schedule, including oil changes, air filter replacements, and spark plug maintenance. Look at all Bmw fuel economy data after your next tune-up to see how it impacts your MPG.