The 2018 BMW M240i xDrive Coupe gets 24 MPG combined. It’s not atrocious, but it’s also nowhere near hybrid territory. Understand that this number exists to provide just enough efficiency so that drivers can sign the papers, drive away, and forget about it as they chase apexes and spool up the turbo on the way to work. This isn’t a car bought by hypermilers. This is a car bought by enthusiasts willing to trade a few MPG for serious performance.

City and highway performance

The M240i xDrive Coupe posts an EPA-estimated 21 MPG in the city and 30 MPG on the highway. The city figure is arguably less relevant because stop-and-go driving is rarely where this car shines. Its relatively short wheelbase and punchy engine make it a fun companion in urban environments, but it never truly stretches its legs. The 30 MPG highway figure is more telling. While not stellar, it demonstrates that the M240i can be a reasonably efficient long-distance cruiser, especially when you resist the temptation to dip into the boost for frequent passing. This duality is key to the car’s appeal: it can be both a thrilling backroad tool and a comfortable (enough) highway machine.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,400 for the 2018 BMW M240i xDrive Coupe. This calculation assumes 15,000 miles of driving per year, with a mix of city and highway driving, using the national average fuel price. This number represents an honest picture of ownership cost, but your actual fuel expenses will vary depending on your driving habits. For instance, frequent full-throttle acceleration and exclusively city driving will push this number higher, potentially much higher. However, disciplined highway driving might lower it, but that would be missing the point of owning this car.

Real-world expectations

While the EPA provides a standardized benchmark, real-world M240i fuel economy often deviates. If you regularly exploit the engine’s performance, expect to see numbers slightly below the combined 24 MPG figure. It is not uncommon for enthusiastic drivers to report 20-22 MPG in mixed driving. Some owners who prioritize fuel conservation on longer trips have reported highway figures exceeding the EPA estimate. As with any performance car, your right foot is the biggest determinant of fuel efficiency. Remember to check M240I MPG across all years for trends and insights from other owners.

How it compares

The M240i xDrive exists in a competitive segment where performance and fuel economy often clash. The Audi S3, a direct competitor, achieves a similar 25 MPG combined, with a four-cylinder engine. The Mercedes-AMG CLA 45 delivers roughly 23 MPG combined, and it boasts even more power. A Porsche 718 Cayman offers a more focused driving experience, and it comes in around 22 MPG combined. These small differences in MPG are unlikely to sway buyers significantly. The M240i buyer prioritizes the BMW brand’s performance and refinement, along with the inline-six engine’s unique character, a character that’s rapidly disappearing. For a broader perspective, consult all Bmw fuel economy data.

Tips to Maximize Efficiency

While fuel conservation might seem at odds with the M240i’s purpose, a few simple adjustments can improve matters. Avoid aggressive acceleration because it forces the turbocharger to work harder and consumes more fuel. Gentle throttle inputs during initial acceleration and smooth transitions at highway speed can make a difference, without fully neutering the fun.

Take advantage of the M240i’s driving modes. Selecting “Eco Pro” mode will remap the throttle response and shift points for maximum efficiency. While this mode does dull the car’s performance, it’s useful for highway cruising or when prioritizing fuel economy in congested traffic. Sport Mode will make you smile while simultaneously emptying your wallet faster.

Proper tire inflation is critical for both performance and efficiency. Ensure your tires are inflated to the recommended pressure listed on the doorjamb sticker. Underinflated tires increase rolling resistance, which reduces MPG. This is especially important on a car known for its responsive handling.

Regular maintenance is necessary. A well-maintained engine runs more efficiently. Ensure your M240i receives regular oil changes, air filter replacements, and spark plug inspections as recommended by BMW. These simple tasks can help maintain optimal engine performance and fuel economy.