19 MPG combined isn’t going to win any hypermiling contests, and it’s not the reason someone chooses the 2019 BMW M4 Convertible. This car is built for performance, open-air thrills, and making a statement. The fuel economy is simply the price of admission, a secondary consideration for those who prioritize driving pleasure and head-turning style above all else.

City and highway performance

The EPA estimates of 16 MPG in the city and 22 MPG on the highway reflect the M4 Convertible’s twin personalities. In urban environments, the stop-and-go traffic and frequent bursts of acceleration from the turbocharged 3.0-liter inline-six take their toll. The automatic transmission, while quick and responsive, doesn’t mitigate the fuel burn when navigating congested streets. On the open road, however, the M4 Convertible can stretch its legs. Cruising at highway speeds allows the engine to settle into a more efficient range, resulting in the slightly improved 22 MPG figure. Still, even on the highway, a heavy foot will quickly diminish any fuel-saving potential. This car begs to be driven aggressively.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2019 BMW M4 Convertible is $3,050. This figure is based on driving 15,000 miles per year, with an assumed fuel price reflecting the national average. Your actual fuel costs may vary depending on your driving habits, the type of fuel you use, and local fuel prices. If you spend most of your time in the city or have a penchant for spirited driving, expect to exceed this estimate. Conversely, if you primarily drive on the highway and adopt a more relaxed driving style, you might come in slightly under. For owners of this vehicle, maximizing MPG is far less motivating than the experience of top-down motoring and impressive performance.

Real-world expectations

In the real world, achieving the EPA’s combined 19 MPG figure consistently can be challenging. The M4 Convertible’s intoxicating power and responsive handling encourage aggressive driving, which inevitably impacts fuel economy. Owners who frequently engage launch control, explore the upper limits of the tachometer, or simply enjoy the thrill of rapid acceleration will likely see significantly lower numbers. However, with mindful driving and a conscious effort to minimize aggressive maneuvers, it’s possible to get closer to the EPA estimates. Remember, every model is different if you are looking at all Bmw fuel economy data.

How it compares

Compared to its competitors, the 2019 BMW M4 Convertible’s fuel economy is generally in the same ballpark. The Mercedes-AMG C63 S Cabriolet, for example, with its throaty V8, manages a similar 17 MPG combined. The Audi RS5 Cabriolet, with its turbocharged V6, also hovers around the same 18 MPG mark. While there might be a minor difference of one or two MPG between these models, it’s unlikely to be the deciding factor for buyers in this segment. Performance, styling, and brand recognition tend to weigh more heavily in their decision-making process. For a broader perspective, consider also the M4 MPG across all years.

Tips to maximize efficiency

While the M4 Convertible isn’t designed to be a fuel-sipper, there are still steps you can take to improve its efficiency. Avoid unnecessary idling, as this consumes fuel without covering any distance. Turn off the engine during extended stops, such as waiting in long lines or traffic jams. The automatic start/stop feature can help with this if you find it doesn’t interfere with your driving experience.

Drive smoothly and avoid aggressive acceleration and braking. The M4 Convertible’s powerful engine responds quickly to throttle inputs, so modulating the accelerator pedal effectively can significantly impact fuel consumption. Anticipate traffic flow and maintain a consistent speed whenever possible. Use cruise control on the highway to optimize fuel efficiency.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressures regularly and inflate them to the recommended levels specified on the door jamb sticker. Also, consider using the M4’s “Efficiency” driving mode. This setting softens throttle response and optimizes transmission settings for better fuel economy, but performance is compromised, it’s useful for long cruises or mundane commutes.

Reduce weight. Excess weight puts additional strain on the engine, decreasing fuel economy. Remove any unnecessary items from the trunk and passenger compartment. Regularly clean out clutter to minimize the load on your vehicle.