24 MPG combined isn’t going to win any awards. But that figure, delivered by the 2024 BMW 840i xDrive Coupe, reflects the priorities of its driver. This isn’t a car for hypermilers or people focused on lower fuel costs. It’s for someone who appreciates a potent engine, advanced styling, and all-weather confidence – and is willing to trade absolute fuel efficiency for those attributes.

City and highway performance

The EPA estimates the 840i xDrive Coupe achieves 21 MPG in the city and 29 MPG on the highway. The difference highlights the engine’s responsiveness. The 3.0-liter turbocharged inline-six performs best on the open road, where it can settle into a comfortable cruise. City driving, with its constant stop-and-go, puts more strain on the engine and increases fuel consumption. This emphasizes the 840i xDrive’s purpose: a grand tourer designed for effortless long-distance travel.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2024 BMW 840i xDrive Coupe is $2,400. This figure is based on driving 15,000 miles per year and using national average fuel prices. It’s a reasonable estimate for many drivers, but individual results will vary based on driving habits, local fuel costs, and the specific mix of city versus highway miles driven. The EPA assumes a 55% city and 45% highway split in their calculations.

Real-world expectations

While the EPA provides a standardized baseline, expect some deviation in real-world driving. The 840i xDrive Coupe’s turbocharged engine encourages spirited driving, and a heavy foot will reduce fuel economy. Conversely, a conscious effort to drive smoothly and anticipate traffic flow can help achieve figures closer to the EPA estimates. Temperature and tire pressure will also affect mileage, and proper maintenance with regular tire pressure checks and servicing will keep the MPG numbers closer to their peak.

How it compares

Compared to other luxury coupes, the 840i xDrive occupies a middle ground. The Lexus RC 350 AWD, for example, manages only 22 MPG combined, giving the 840i a lead in the segment. The Porsche 911 Carrera 4 manages 20 MPG combined with its automatic transmission, making it a less fuel-efficient option for those who would consider it. If fuel economy is a primary concern, some might consider the Mercedes-Benz C300 Coupe, which achieves 28 MPG combined, but it’s a smaller car with a less powerful engine. Buyers considering the 840i are typically less concerned with outright fuel efficiency and more focused on the balance of performance, luxury, and style. Be sure to reference 840I MPG across all years before comparing.

Tips to maximize efficiency

Avoid aggressive acceleration. The 840i’s turbocharged engine delivers plenty of power, so there’s no need to constantly push it to its limits. Smooth, gradual acceleration will significantly improve fuel economy, especially in city driving. Use the car’s Eco Pro mode, which optimizes various vehicle settings, such as throttle response and shift points, to prioritize fuel efficiency. It’s a simple way to reduce fuel consumption without sacrificing too much performance for ordinary commutes.

Keep your tires properly inflated. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended levels, which can be found on the door jamb or in the owner’s manual. Every little bit helps reach the vehicle’s best possible MPG.

Minimize idling. Letting the engine idle for extended periods wastes fuel. If you’re stopped for more than a minute, turn off the engine. Modern cars are designed to restart quickly and efficiently, so there’s no need to keep the engine running unnecessarily. By keeping the engine off, this helps prevent unneeded consumption.

Plan your routes strategically. Anticipate traffic patterns and optimize your routes to minimize stop-and-go driving. Avoiding rush hour and choosing routes with fewer traffic lights can significantly improve fuel economy, and this is all possible with modern navigation systems that help make for a fuel-efficient journey.

Stick to BMW recommended oil changes. Using the correct type and changing it at the scheduled service intervals will allow the engine to run as efficiently as possible. When the engine oil is new, it will run smoother and more responsively than when it has been used for extended periods. Always consult all Bmw fuel economy data before purchasing a BMW.