The 2021 BMW 745e xDrive, powered by its 3.0L inline-six-cylinder engine, achieves a combined fuel economy rating of 22 MPG. This figure isn’t going to win any awards, but it’s what you get for seeking the performance, luxury, and advanced technology that BMW’s flagship sedan offers, especially with a plug-in hybrid powertrain that adds electric assistance.

City and highway performance

The 22 MPG combined figure breaks down to 19 MPG in the city. Although not stellar, the electric motor provides a boost at lower speeds and in frequent stop-and-go traffic, potentially maximizing efficiency in this environment. On the open highway, the 745e xDrive achieves 26 MPG. This shows the car’s ability to cruise efficiently on longer journeys once it’s up to speed, its long gearing helps. These numbers reflect the EPA’s testing. Drivers should know that personal driving styles and traffic can significantly impact their actual fuel economy.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 BMW 745e xDrive at $2,650. This is based on driving 15,000 miles per year and using national average fuel prices. This is a plug-in hybrid, so drivers who diligently plug in and drive shorter trips may find their fuel costs are lower. However, those who mainly take longer freeway trips and don’t plug in could easily exceed the $2,650 estimate. A lot depends on how it’s used.

Real-world expectations

The EPA estimates provide a standardized starting point, but the reality for 745e xDrive owners often differs. Those who mainly use the car for shorter commutes and consistently charge the battery can see significantly improved fuel economy figures, potentially even exceeding the EPA combined rating. How often the electric motor assists the gas engine is a major factor. But those who regularly drive fast or frequently go on long highway trips may find that their fuel consumption mirrors or even goes beyond the official estimates. The 745e’s design allows the owner to control some of these variables.

How it compares

Several competitors exist among luxury sedans, each with different fuel economy. For example, the Mercedes-Benz S560, a direct competitor known for its luxury and performance, achieves around 19 MPG combined. The non-hybrid Porsche Panamera hovers in a similar range. The Lexus LS 500 manages around 22 MPG, which is on par with the 745e. While the 745e may not be the most efficient overall, it has a plug and offers brief all-electric drive, which affects the comparison. People considering the 745e prioritize performance and exclusivity over pure fuel savings. For all Bmw fuel economy data, see the BMW page on FuelEconomyHub.com.

Tips to maximize efficiency

Charge regularly. This is a plug-in hybrid, so it’s best to recharge the battery often. Regular charging can significantly reduce reliance on the gasoline engine, especially for shorter trips. Plug the 745e in every night, even if the battery isn’t fully depleted.

Drive efficiently. Smooth acceleration and gentle braking are key to maximizing fuel economy. Avoid abrupt stops and try to anticipate traffic to maintain a consistent speed. Also watch the power gauge and drive conservatively to keep the gasoline engine off.

Use Eco Pro mode. The 745e xDrive offers driving modes, including Eco Pro, which prioritizes fuel efficiency. Eco Pro modifies engine response, transmission settings, and climate control to reduce energy consumption. It can feel sluggish sometimes, but it helps. Owners should try Eco Pro and remember it is available. Note: for 745E MPG across all years, see the model page on FuelEconomyHub.com

Keep tires properly inflated. Underinflated tires increase rolling resistance, which leads to higher fuel consumption. Check tire pressure regularly and inflate them to the recommended levels. The correct tire pressure is on a sticker inside the driver’s door or in the owner’s manual.

Reduce weight. Carrying extra weight in the vehicle reduces fuel efficiency. Remove unnecessary items from the trunk and backseat to lighten the load. Even small weight savings can improve fuel economy, and the trunk of the 745e fills up easily.