The 2017 BMW M240i xDrive Convertible gets 25 MPG combined, a figure that probably won’t deter its target demographic. This isn’t a car for penny-pinchers; it’s for enthusiasts who prioritize open-air thrills and strong performance over saving gas. The M240i Convertible gives you BMW’s signature driving dynamics in a stylish package, and that comes at a cost.

City and highway performance

The EPA estimates for the M240i xDrive Convertible are 21 MPG in the city and 31 MPG on the highway. The city figure reflects how responsive the engine is and the realities of stop-and-go traffic, where the turbocharger is frequently used to deliver its torque. The highway number, while respectable, might not show the engine’s full potential. If driven with restraint on long stretches of open road, you can exceed the EPA’s estimate, but restraint is often the last thing on the mind of an M240i driver.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2017 BMW M240i xDrive Convertible is approximately $2,300. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Remember that premium fuel is recommended for optimal performance, and premium fuel prices are usually higher than regular. Therefore, depending on your driving habits and location, your actual fuel costs could be higher or lower than the EPA estimate. If you’re curious about all Bmw fuel economy data, you can see how other models compare.

Real-world expectations

While the EPA estimates provide a standardized benchmark, real-world fuel economy often changes. The M240i xDrive Convertible is particularly vulnerable to this. The car’s exciting performance encourages spirited driving, and the addictive exhaust note often makes drivers push the engine harder. Expect to see numbers closer to the low-20s in mixed driving if you regularly exploit the car’s performance capabilities. M240I MPG across all years can vary, so it’s helpful to compare.

How it compares

The M240i xDrive Convertible fills a unique spot, but there are a few competitors in its class. A 2017 Audi S3 Cabriolet, for example, gets an EPA-estimated 24 MPG combined, with its turbocharged 2.0-liter four-cylinder engine. The Porsche 718 Boxster, a purist’s sports car, offers a similar combined rating, but without the all-weather capability of the M240i’s xDrive system. The now-discontinued Nissan 370Z Roadster, with its naturally aspirated V6, uses fuel at a considerably faster rate, its fuel economy is rated at 20 MPG combined. These comparisons highlight the M240i’s relative efficiency within the performance convertible segment, but the Audi and Porsche are lighter, more focused sports cars that often appeal to a different kind of driver.

Tips to maximize efficiency

Although the M240i xDrive Convertible is not primarily about lower fuel costs, adopting certain driving habits can help you conserve fuel. Use the car’s “Eco Pro” mode, which alters throttle response and transmission programming to prioritize efficiency. While it dampens the car’s responsiveness, it can make a noticeable difference in fuel consumption, especially during highway cruising.

Be mindful of your acceleration. The M240i’s turbocharger delivers instant torque, making it easy to accelerate quickly. However, this also consumes more fuel. Smooth, gradual acceleration will significantly improve your MPG. Avoiding hard launches and unnecessary bursts of speed will help you maximize efficiency.

Proper tire inflation plays an important role in fuel economy. Check your tire pressures regularly and maintain them at the recommended levels. Under-inflated tires cause increased rolling resistance, which forces the engine to work harder and burn more fuel. You can find the correct tire pressure on a sticker located on the driver’s side doorjamb or in the owner’s manual.

Reduce unnecessary weight. Carrying extra cargo in the trunk or backseat adds weight to the vehicle, which reduces fuel efficiency. Remove any items that are not essential for your journey. Even small weight reductions can contribute to incremental improvements in fuel economy over time.