26 MPG combined is not the defining characteristic of the 2022 BMW M440i Convertible. This isn’t a Prius, and it doesn’t try to be. What 26 MPG represents is a reasonable level of efficiency for a sleek, dynamically engaging convertible with a turbocharged inline-six producing a thrilling 382 horsepower. The M440i Convertible appeals to buyers who prioritize open-air driving enjoyment and performance over being frugal. They want a stylish car for weekend cruises and sunny-day commutes; the M440i delivers that experience with a dose of practicality that allows fuel costs to be secondary to fun.

City and highway performance

The EPA estimates for the M440i Convertible break down to 23 MPG in the city and 31 MPG on the highway. The city figure reflects the stop-and-go nature of urban driving, where the turbocharger spools up and down frequently, impacting fuel consumption. The highway MPG illustrates the engine’s efficiency at steady speeds, where the eight-speed automatic transmission keeps the engine in its sweet spot for both power and fuel conservation. The difference between city and highway figures is relatively modest, suggesting a well-tuned engine and transmission pairing that performs reasonably well across various driving conditions.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2022 BMW M440i Convertible to be exactly $2,250. This figure is based on driving 15,000 miles per year, with a mix of city and highway driving, and assumes the national average fuel price. Individual fuel costs will vary depending on actual driving habits, local fuel prices, and the driver’s propensity for spirited acceleration. Keep in mind that this calculation uses national averages, so your mileage may vary. This helps set a benchmark for comparing to other vehicles and helping owners understand what typical fuel costs might be.

Real-world expectations

EPA figures provide a useful benchmark, but real-world MPG for the M440i Convertible will vary depending on driving style and conditions. Drivers with a lead foot, frequently using the engine’s ample power, should expect figures closer to the city estimate, or even lower. Those who prioritize smooth acceleration and consistent highway speeds may see numbers closer to, or even slightly exceeding, the 31 MPG highway estimate. The M440i’s fuel economy is directly tied to how aggressively it’s driven. The good news is it’s a fun car to drive both aggressively and conservatively.

How it compares

Compared to other sporty convertibles, the M440i’s fuel economy is fairly competitive. The Audi S5 Cabriolet, with its turbocharged V6, achieves a similar 21 MPG city and 30 MPG highway. The Porsche 718 Boxster, despite its smaller four-cylinder engine in base form, delivers around 21 MPG city and 27 MPG highway, making the M440i slightly more efficient on the highway. The difference might not seem significant on paper, but it can add up over time, especially for drivers who spend considerable time on the open road. For those interested in all Bmw fuel economy data, it’s worth comparing different models and years, and for those especially curious about the M440I MPG across all years, the data should be informative.

Tips to maximize efficiency

Use the M440i’s driving modes effectively. Comfort mode prioritizes fuel efficiency by optimizing throttle response and transmission shift points. For everyday driving, it’s the most economical choice.

Practice smooth acceleration and braking. Avoid hard acceleration and abrupt braking, as these actions consume more fuel. Anticipate traffic conditions and maintain a consistent speed whenever possible.

Ensure proper tire inflation. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended levels.

Minimize idling. Excessive idling wastes fuel. If you anticipate waiting for more than a minute, turn off the engine. Modern engines are designed to restart quickly and efficiently.

Consider the impact of the top. Driving with the top down increases aerodynamic drag, especially at higher speeds, which negatively affects fuel economy. The M440i Convertible is meant to be enjoyed with the top down, but understanding the trade-off can help you make informed decisions about driving conditions.