Twenty miles per gallon combined is not the number one selling point of the 2018 BMW 650i Gran Coupe’s 4.4L V8. It is also not a reason to dismiss it. This car is a statement, a four-door coupe that prioritizes style and presence as much as, or more than, outright practicality. Its buyers are successful individuals who appreciate the finer things, and while they’re not necessarily oblivious to fuel costs, they’re willing to accept a trade-off for the experience this BMW delivers.

City and highway performance

The EPA estimates the 2018 BMW 650i Gran Coupe at 17 MPG in the city and 25 MPG on the highway. The city figure reflects the demands of stop-and-go traffic, where the 4.4L V8 engine is constantly accelerating and decelerating, burning more fuel in the process. The highway number is more respectable, showcasing the engine’s ability to cruise efficiently at steady speeds. The eight-speed automatic transmission plays a crucial role here, keeping the engine in its optimal power band.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2018 BMW 650i Gran Coupe at $2,900. This figure assumes 15,000 miles of driving per year, with a certain percentage split between city and highway conditions, and is based on a national average fuel price. Individual fuel costs will vary depending on driving habits, location, and fluctuating fuel prices, but $2,900 provides a benchmark for prospective buyers of this stylish four-door.

Real-world expectations

While the EPA estimates provide a useful baseline, real-world fuel economy can deviate. Drivers with a heavier foot, or those who frequently engage the engine’s considerable power, may find themselves closer to the city MPG figure, even on longer drives. Careful drivers who prioritize fuel efficiency and spend more time on the open road could potentially exceed the EPA’s highway estimate, especially if they use the car’s Eco Pro driving mode.

How it compares

Compared to other luxury four-door coupes, the 2018 BMW 650I MPG across all years sits in a predictable spot. The Mercedes-Benz CLS550, with its 4.7L V8, achieves a similar 17 city / 25 highway MPG rating. The Audi A7, equipped with a supercharged 3.0L V6, offers slightly better efficiency at 21 city / 29 highway. Ultimately, the BMW’s buyer is likely prioritizing the visceral experience of the V8 and the specific design language of the Gran Coupe over marginal fuel savings. Those considering all Bmw fuel economy data will find similar variations among other models in the lineup. The Porsche Panamera, particularly in its higher-performance trims, can easily fall below the 650i’s MPG figures.

Tips to maximize efficiency

Use the Driving Dynamics Control system. The 650i Gran Coupe offers various driving modes, including Eco Pro, which optimizes engine and transmission settings for maximum fuel efficiency. This mode can significantly reduce fuel consumption, especially during daily commutes.

Maintain a smooth and consistent driving style. Avoid excessive acceleration and braking, as these actions consume more fuel. Anticipate traffic flow and maintain a steady speed whenever possible. The 650i is designed for smooth cruising, so use cruise control on the highway whenever safe to do so.

Ensure proper tire inflation. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended levels as specified on the door jamb sticker.

Keep up with regular maintenance. A well-maintained engine operates more efficiently. Follow the recommended maintenance schedule for oil changes, air filter replacements, and other services to ensure optimal performance and fuel economy.

Reduce unnecessary weight. Carrying extra weight in the vehicle reduces fuel economy. Remove any unnecessary items from the trunk and interior to minimize the load on the engine.