19 MPG combined isn’t going to win any awards, but it’s the price to pay for experiencing the raw thrill of the 2017 BMW M4 Convertible. Anyone seriously considering this car isn’t prioritizing fuel efficiency above all else; they’re buying a high-performance, open-top driving experience. The M4 Convertible exists to deliver exhilarating performance and a visceral connection to the road, and that comes at a cost at the pump. You’re paying for the privilege of that twin-turbocharged inline-six and the expertly tuned chassis that makes backroad carving an addictive pastime.

City and highway performance

The EPA estimates of 17 MPG in the city and 24 MPG on the highway reflect the split personality of the M4 Convertible. Stop-and-go traffic and frequent bursts of acceleration take their toll in the city. The responsive throttle and eager engine encourage spirited driving, which will further decrease fuel economy. On the highway, with the engine settled into a comfortable cruise, the M4 Convertible can achieve more respectable mileage. However, even on long road trips, the temptation to unleash the engine’s power will likely keep the average closer to the combined figure.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 BMW M4 Convertible at $3,050. This figure is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that premium fuel is required, which typically costs more than regular gasoline, impacting real-world expenditure. Your actual fuel costs will vary depending on your driving habits, fuel prices in your area, and how often you give in to the M4’s performance urges. This figure serves as a benchmark, but consider it a minimum rather than a maximum if you plan to fully exploit the car’s capabilities. Remember, this isn’t a Prius; you’re paying for performance, and that includes higher fuel bills.

Real-world expectations

Don’t expect to consistently achieve the EPA’s figures, especially if you enjoy the M4 Convertible’s intended purpose. Aggressive acceleration, frequent downshifts, and spirited driving will significantly lower your MPG. Owners who primarily drive in urban environments or frequently engage in performance driving should anticipate fuel economy closer to the city estimate, possibly even lower. If you drive carefully on the highway with minimal acceleration, you might yield numbers closer to the highway estimate, however, few M4 Convertible owners buy this car to hypermile. A realistic expectation for combined driving is likely between 16 and 21 MPG for most owners.

How it compares

Compared to its competitors, the M4 Convertible’s fuel economy is generally in line with other high-performance convertibles. The Audi S5 Convertible, with its supercharged V6, achieves a similar 19 MPG combined. The Mercedes-AMG C43 Cabriolet delivers comparable performance and fuel economy, also hovering around 19-20 MPG combined. Even the Porsche 718 Boxster S, known for its handling prowess, posts similar fuel consumption numbers despite its smaller engine. For those seeking better mileage within the BMW family, examining all Bmw fuel economy data is worthwhile, but understand that you’ll be sacrificing the raw performance and excitement that define the M4. Comparing M4 MPG across all years reveals a consistent trend in fuel consumption for this model.

Tips to maximize efficiency

While the M4 Convertible isn’t designed for maximum fuel efficiency, some driving techniques can help improve your mileage. Avoid aggressive acceleration and hard braking, which consume more fuel. Consistent and smooth throttle inputs minimize fuel waste. Anticipate traffic flow to reduce unnecessary stopping and starting, and use cruise control on the highway to maintain a steady speed.

Proper tire inflation is critical for optimal fuel efficiency. Check your tire pressure regularly and maintain the recommended levels specified on the door jamb sticker. Underinflated tires create more rolling resistance, which decreases fuel economy. Ensure your tires are properly aligned for increased fuel efficiency. Misalignment can lead to increased rolling resistance and decreased fuel efficiency.

Minimize the use of accessories like air conditioning, especially during short trips. The AC compressor puts extra strain on the engine, consuming more fuel. Consider using the car’s ventilation system without the AC when the weather allows. Also, avoid carrying unnecessary weight in the car, as extra weight reduces fuel economy. Remove any items from the trunk or back seats that are not essential.

Use manual shift mode if you have the option. Controlled shifting can reduce fuel consumption. Monitor the tachometer and shift at lower RPMs to avoid unnecessary engine revving. Also, make sure your BMW has been properly maintained with regular oil changes. Old oil increases engine friction and decreases fuel mileage.