BMW · 2020
440i Convertible 3.0L 6-cyl
✓ EPA Verified
Premium Gasoline
Subcompact Cars
Rear-Wheel Drive
City
22
MPG
Combined
24
MPG
Highway
29
MPG
Annual Fuel Cost
$2,400
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$250
more per year
Class Comparison — Subcompact Cars
Bottom 48%
Better than 48 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 24 MPG
This vehicle
24 MPG
Class average
27 MPG
Class lowest
12 MPG
EPA Energy & Environment Scores
5
Energy Score
Out of 10
5
GHG Score
Out of 10
361 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine3.0L 6-cyl
TransmissionAutomatic (S8)
DriveRear-Wheel Drive
Fuel TypePremium Gasoline
Vehicle ClassSubcompact Cars
Engine DescSIDI
Start-StopYes
EPA Vehicle ID41327

24 MPG combined is unlikely to be the primary motivator for anyone choosing a 2020 BMW 440i Convertible. This isn’t a Prius designed for maximum fuel efficiency; it’s a stylish, open-air grand tourer with a potent inline-six engine. Owners prioritize performance, driving pleasure, and the prestige of the BMW badge, accepting the fuel consumption as a trade-off for the experience. They are likely professionals, empty-nesters, or individuals who value weekend thrills over economic considerations. This isn’t the daily workhorse; it’s the reward for a long week.

City and highway performance

The 440i Convertible’s EPA estimates break down to 22 MPG in the city and 29 MPG on the highway. This split reflects the nature of its engine and intended use. City driving, with its stop-and-go traffic and frequent acceleration, taxes fuel economy. The turbocharged 3.0L inline-six loves to rev, and short city trips rarely allow it to settle into its most efficient operating zone. Highway driving, on the other hand, allows the engine to cruise at a steady pace, using the smooth-shifting eight-speed automatic transmission to maintain optimal RPMs and maximize fuel efficiency. The 29 MPG highway figure is respectable for a car of its performance caliber, enabling comfortable long-distance journeys without constant fuel stops.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 BMW 440i Convertible at $2,400. This figure is based on driving 15,000 miles per year, using national average fuel prices. Keep in mind this is a *national* average. If you live in a state with higher gasoline prices, or if you tend to drive more aggressively, your actual fuel costs could be significantly higher. Conversely, conservative drivers in areas with lower fuel costs may find their annual expenditure is below this estimate. The $2,400 figure serves as a benchmark for comparing the 440i Convertible to other vehicles in its class, helping potential buyers factor fuel costs into their ownership budget.

Real-world expectations

While EPA estimates provide a standardized baseline, real-world fuel economy often varies. Expect the 440i Convertible’s actual MPG to fluctuate based on factors such as driving style, traffic conditions, and even the weather, not to mention proper maintenance. Enthusiastic driving will undoubtedly dip below the EPA estimates, while gentle highway cruising might exceed them. The type of fuel used also plays a role. The 440i’s engine is designed to run on premium fuel, and although it might tolerate regular octane, using premium will ensure optimal performance and potentially improve fuel efficiency slightly.

How it compares

Considering its performance and luxury aspirations, the 2020 440i Convertible lands within a reasonable range compared to its peers. For instance, the Audi S5 Convertible, boasting all-wheel drive and a turbocharged V6, achieves around 21 MPG combined. Stepping up in power and size, the Mercedes-AMG C43 Convertible, with its more potent AMG-tuned V6, sees around 22 MPG combined. At the other end of the spectrum, a four-cylinder convertible like the BMW Z4 M40i (a very different type of car, granted) typically gets closer to 25 MPG combined, a modest boost primarily due to its smaller, lighter engine. Comparing the 440I MPG across all years, you’ll notice similar trends, influenced by technological advancements and engine tweaks. For drivers considering the fuel economy alongside overall brand allure, they should check all Bmw fuel economy data.

Tips to maximize efficiency

Avoid aggressive acceleration. The 440i’s turbocharger delivers a surge of power, but frequent bursts of full throttle will drastically reduce fuel economy. Gentle acceleration and smooth transitions will conserve fuel without sacrificing too much driving enjoyment. Enjoy the car’s natural smoothness.

Use the driving mode selector. The 440i offers various driving modes, including Eco Pro, which prioritizes fuel efficiency by adjusting throttle response, transmission mapping, and climate control settings. Switching to Eco Pro during highway cruising or low-speed commuting can noticeably improve MPG.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, forcing the engine the work harder and burn more fuel. Check your tire pressure regularly and inflate them to the recommended specifications, typically found on a sticker inside the driver’s doorjamb.

Minimize unnecessary weight. Carrying around heavy items in the trunk or back seats increases fuel consumption. Remove any unnecessary cargo to reduce the load on the engine and improve MPG. Don’t treat the trunk as additional storage space.

Schedule regular maintenance. A well-maintained engine runs more efficiently. Follow the manufacturer’s recommended maintenance schedule, including oil changes, air filter replacements, and spark plug inspections, to ensure performance and prevent fuel-wasting issues. Small investments in upkeep pay dividends.