19 MPG combined is what you should expect if you want the top-down thrills and quick acceleration of the 2020 BMW M4 Convertible. Let’s be honest: nobody shopping for a high-performance convertible with over 400 horsepower expects Prius-like economy. This car delivers a memorable driving experience first. Fuel efficiency is a lower priority.

City and highway performance

The official EPA ratings list the M4 Convertible at 16 MPG in the city and 22 MPG on the highway. That city figure is relevant because many M4 Convertibles are used more for city streets, and to be seen, than racking up long highway miles. Consistent stop-and-go traffic will hurt your fuel consumption. The 22 MPG highway figure is more achievable during steady cruising, but only if you resist accelerating. Driving with enthusiasm will drop that number.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 BMW M4 Convertible will be $3,050. This figure is based on driving 15,000 miles per year and using national average fuel prices. Premium fuel is required, which typically costs more per gallon than regular unleaded. Your actual fuel costs will vary depending on your driving, local fuel prices, and how often you drive the M4 hard. More aggressive driving will certainly push that $3,050 estimate higher.

Real-world expectations

While the EPA provides a standardized estimate, real-world fuel economy often differs. Expect to see numbers slightly below the official numbers, especially if you drive hard. Owners report numbers varying based on driving style. Some drivers can get close to 22 MPG on the highway, but most see something in the high teens or low twenties. The city figure is especially sensitive to traffic and how you drive. Frequent acceleration, hard braking, and extended idling will all lower your average MPG. It’s important to realistically assess your driving and typical routes to get a sense of what you’ll actually experience. You can also review M4 MPG across all years for user-submitted real-world data.

How it compares

Compared to rivals, the M4 Convertible’s fuel economy isn’t class-leading. The Mercedes-AMG C43 Convertible, with its 3.0L V6 biturbo, achieves a slightly better 22 MPG combined. The Audi S5 Cabriolet, sporting a 3.0L TFSI V6, also gets a 24 MPG combined rating. These differences may seem small, but they can add up over time, especially considering the M4’s need for premium fuel. Is the M4’s higher horsepower and more aggressive driving worth the fuel economy tradeoff? If power is the priority, then the M4 makes sense.

Tips to maximize efficiency

While the M4 Convertible is about performance, it’s still possible to improve its fuel economy. Avoid fast acceleration and braking, as these use significant fuel. Watch traffic and maintain a steady speed when possible. The engine’s twin-turbochargers respond instantly, so small changes in acceleration can make a difference.

Take advantage of the car’s driving modes. The M4 offers various modes, including an “Eco Pro” mode, which changes engine and transmission settings for fuel efficiency. It might tame the M4’s fun character, but it’s a good option when you want to save fuel on longer trips.

Make sure your tires are properly inflated. Underinflated tires increase rolling resistance, which hurts fuel economy. Regularly check your tire pressure and keep it at the recommended level on the door jamb to help all Bmw fuel economy data.

Reduce unnecessary weight. Extra items in the trunk add weight, which requires more energy to accelerate and maintain speed. Remove anything you don’t need to improve efficiency. Even a small amount of weight reduction can make a difference.