24 MPG combined isn’t the main selling point of the 2023 BMW 840i Gran Coupe. People who buy this stylish four-door coupe usually aren’t focused on getting the best possible gas mileage. They want a car that makes a statement, with serious performance, a luxurious interior, and the prestige of the BMW name. This MPG figure is a trade-off they accept to experience the unique combination of style and performance that the 840i Gran Coupe offers.

City and highway performance

The EPA estimates the 840i Gran Coupe gets 21 MPG in the city and 29 MPG on the highway. The city number reflects real-world stop-and-go traffic, where the turbocharged six-cylinder engine works harder and the automatic transmission shifts often. This slightly lower city MPG is fine for drivers who spend a lot of time in urban areas. The 29 MPG highway number is more appealing, suggesting the car’s long-distance touring capabilities. This can be achieved when cruising at a constant speed, making long trips more enjoyable, especially compared to city driving. The eight-speed automatic transmission (S8), programmed for both responsiveness and efficiency, is important for maximizing fuel economy at highway speeds.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 BMW 840i Gran Coupe is $2,400. This is based on driving 15,000 miles per year and using national average fuel prices. Fuel costs can change based on your location and driving habits. Driving aggressively, accelerating often, and idling for long periods will all increase your fuel bill. The $2,400 figure is a helpful benchmark, but individual fuel expenses will vary.

Real-world expectations

The EPA estimates offer a standard way to compare vehicles, but real-world fuel economy depends on several things. Driving style is important. Driving hard will decrease fuel efficiency, while driving more carefully will give you results closer to, or even better than, the EPA estimates. Terrain also matters; driving in hilly areas will increase fuel consumption. Remember that the 840i Gran Coupe encourages spirited driving, and many owners will want to experience its performance. If you often use the car’s power, expect your MPG to be lower.

How it compares

In the luxury four-door coupe class, the 840i Gran Coupe is surrounded by competitors with similar gas mileage. For example, the Mercedes-Benz CLS 450 gets around 22 MPG combined, slightly less than the BMW. The Audi A7 is another competitor, and it also gets in the low-to-mid 20s for combined MPG. Exploring all Bmw fuel economy data will show how this model compares to the rest of the lineup. The Porsche Panamera, which also offers higher-performance versions, has base models with similar numbers. The similar fuel economy across these models shows the trade-off between performance and efficiency in this class. Buyers in this group probably won’t choose a car only based on MPG, but the 840i Gran Coupe compares well to its rivals. You can research 840I MPG across all years to see how this model’s fuel economy has changed over time.

Tips to maximize efficiency

Use the BMW’s driving mode selector. The “Eco Pro” mode adjusts engine and transmission settings for the best fuel efficiency. Try these settings and watch your MPG to see how different modes affect gas consumption in your daily driving.

Make sure your tires have the correct amount of air. Tires with not enough air increase rolling resistance, which decreases fuel economy. Check your tire pressure often and keep it at the recommended levels listed on the door.

Avoid idling. Modern engines don’t need to warm up for a long time. If you’re stopped for more than a minute, turn off the engine to save gas. Idling uses fuel without moving the car, which lowers your overall MPG.

Use cruise control on the highway. Keeping a steady speed avoids quick acceleration and slowing down, which can improve fuel economy. Using cruise control on long highway drives lets the engine run more efficiently.

Reduce the weight in your car. Extra weight makes the engine work harder, which decreases fuel efficiency. Take any unnecessary items out of the trunk and back seats to reduce the load and improve MPG.