24 MPG combined isn’t going to win any hypermiling contests, but it’s acceptable for the 2016 BMW 640i Coupe. If you’re considering a sleek, two-door coupe with a strong inline-six, fuel efficiency isn’t likely your top priority. This car is for someone who appreciates effortless power, stylish design, and the BMW brand, someone who’s willing to trade a few MPGs for the driving experience.

City and highway performance

The EPA estimates for the 2016 BMW 640i Coupe 3.0L are 20 MPG in the city and 30 MPG on the highway. These figures show how driving changes in different environments. The city MPG reflects stop-and-go traffic and repeated acceleration, which increase fuel consumption. The highway MPG benefits from consistent speeds and less braking, permitting the eight-speed automatic transmission to settle into its most efficient gear ratios and the engine to cruise comfortably. The inline-six, with its large displacement and turbocharging, delivers strong torque across the rev range, meaning less downshifting and less fuel burned to maintain speed. This helps it achieve that 30 MPG highway figure, if you resist the urge to drive it hard.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2016 BMW 640i Coupe 3.0L is $2,400. This is based on driving 15,000 miles annually and using national average fuel prices at the time of calculation. Your actual fuel costs may vary depending on your driving habits, the type of fuel you use, and changes in gas prices. While $2,400 might seem like a lot, this is a luxury vehicle with a powerful engine. The cost reflects how BMW engineers balanced performance and efficiency.

Real-world expectations

The EPA estimates are a good starting point, but real-world fuel economy can differ. Factors such as aggressive driving, frequent short trips, and tire pressure can impact your MPG. Drivers who accelerate smoothly, anticipate traffic conditions, and properly maintain their vehicles are more likely to achieve figures closer to the EPA estimates. Those who often use the inline-six’s power will likely see lower numbers. The 640i Coupe is designed to be enjoyed, and spirited driving means a slight fuel economy decrease. See 640I MPG across all years.

How it compares

The 2016 BMW 640i Coupe’s fuel economy is about average for its class. The 2016 Mercedes-Benz E400 Coupe, also powered by a turbocharged six-cylinder, gets a slightly better 23 MPG combined. The Audi A7 3.0T, while technically a four-door hatchback, competes similarly and gets 24 MPG combined, the same as the BMW. A Porsche Panamera, even with its base V6, won’t match the 640i’s efficiency. Buyers considering vehicles like the BMW 640i Coupe often prioritize styling, performance, and brand prestige over fuel economy, but knowing where it stands compared to rivals is still important. Owners should also explore all Bmw fuel economy data.

Tips to maximize efficiency

Use the Driving Dynamics Control settings. The 640i Coupe lets you select different driving modes, including Eco Pro. In this mode, the car optimizes engine performance, throttle response, and even climate control settings to maximize fuel efficiency. Using Eco Pro consistently, especially during city driving, can noticeably improve your MPG.

Keep your tires properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and inflate them to the recommended level, which is on a sticker inside the driver’s side doorjamb.

Avoid unnecessary idling. If you’re going to be stopped for more than a minute or two, turn off the engine. Modern engines restart quickly, and idling consumes fuel. This is relevant in city driving.

Use cruise control on the highway. Maintaining a constant speed minimizes unnecessary acceleration and braking, which negatively impact fuel economy. Cruise control helps you maintain a smooth and efficient pace, especially on long drives.

Service your vehicle on time. Regular maintenance, including oil changes, air filter replacements, and spark plug replacements, ensures your engine runs efficiently. A well-maintained engine consumes less fuel and performs better.