While 22 MPG combined won’t top any fuel economy charts, it’s the expected tradeoff for owning the 2017 BMW 640i xDrive Gran Coupe. This car prioritizes design over frugality. Owners value its sleek design, luxurious cabin, and the engaging driving experience that BMW is known for. The 640i Gran Coupe is for those who want to arrive in style and enjoy the drive, even if it means more frequent stops for gas.

City and highway performance

The EPA estimates for the 640i xDrive Gran Coupe are 19 MPG in the city and 28 MPG on the highway. The city figure reflects the reality of stop-and-go traffic, where the 3.0L turbocharged inline-six engine works harder. The xDrive all-wheel-drive system adds some rotational inertia. The highway number, 28 MPG, is more attainable when the smooth-shifting eight-speed automatic transmission settles into a fuel-efficient cruising gear. The 640i Gran Coupe effortlessly covers ground on long highway stretches, making that 28 MPG estimate easier to reach.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 BMW 640i xDrive Gran Coupe at $2,650. This is based on driving 15,000 miles per year, a mix of city and highway driving, and national average fuel prices. Actual fuel costs will vary with driving habits and local gas prices, but $2,650 provides a standardized benchmark when evaluating running costs versus other vehicles. It’s useful for understanding the potential financial commitment of owning a car in this class.

Real-world expectations

Remember that EPA estimates are just that. How closely they align with real-world results depends on driving style, traffic, and even the climate. Aggressive acceleration, frequent braking, and extended idling can all reduce fuel economy. Cold weather, especially on short trips before the engine warms up, also impacts MPG. Expect your actual MPG may be slightly below the EPA’s combined figure, especially in city driving.

How it compares

The 640i xDrive Gran Coupe faces strong competition. The Audi A7, with its similar fastback design, offers comparable fuel economy. The A7 3.0T, for example, is rated at 21 MPG combined. The Mercedes-Benz CLS, another stylish four-door coupe, is in the same range. A CLS 400 gets 23 MPG combined. The BMW driving experience is what sets the 640i apart. The car has an engaging feel on the road. Drivers who value that might accept a slight dip in MPG. You can view all Bmw fuel economy data to see how models stack up.

Tips to maximize efficiency

Use the 640i’s driving modes. Selecting “Eco Pro” mode remaps the throttle and shift points to prioritize fuel efficiency. While it won’t drastically improve MPG, it can make a noticeable difference on longer drives.

Regular maintenance is important. Replace the air filter on schedule because a clogged air filter restricts airflow to the engine. This makes it work harder and burn more fuel. Keeping the filter clean ensures optimal engine performance and fuel economy, and prevents long-term mechanical problems.

Check your tires. Underinflated tires increase rolling resistance, reducing fuel economy. Check your tires regularly and inflate them to the recommended pressure on a sticker inside the driver’s side door. Every little improvement counts.

Reduce weight. Carrying extra weight in the trunk or back seats also reduces fuel economy. Removing unnecessary items from the car can improve your MPG. The 640I MPG across all years benefits from a bit less weight.