23 MPG combined means the 2025 BMW X4 M40i isn’t trying to win any hypermiling contests. It’s a performance-oriented coupe-SUV, built for those who prioritize a connected driving experience and aggressive styling over ultimate fuel efficiency. This isn’t the choice for someone solely focused on saving money at the pump; it’s for the enthusiast who wants a thrilling ride and is willing to pay a premium for it.

City and highway performance

The EPA estimates the X4 M40i achieves 22 MPG in the city and 26 MPG on the highway. That city figure reflects the realities of stop-and-go traffic, where the turbocharged 3.0-liter engine and its 382 horsepower work harder. The eight-speed automatic transmission, while incredibly smooth and responsive, prioritizes performance over outright efficiency in urban settings. On the open road, at a steady cruise, the X4 M40i fares better, allowing the engine to settle into its sweet spot. However, aggressive acceleration (a tempting possibility given the engine’s responsiveness) will quickly bring that highway figure down.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2025 BMW X4 M40i at $2,500. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that this figure can fluctuate significantly depending on your individual driving habits and the prevailing price of gasoline. Drivers who spend more time in congested city environments or have a heavier foot will likely exceed this estimate, while those who predominantly drive on the highway and practice fuel-efficient driving techniques might get closer to, or even slightly below, the $2,500 mark.

Real-world expectations

While the EPA provides a standardized benchmark, real-world fuel economy often deviates. The X4 M40i’s spirited performance encourages drivers to tap into its power frequently, which inherently impacts fuel consumption. Also, factors like tire pressure, ambient temperature, and the use of accessories (air conditioning, heated seats, etc.) can all play a role. A driver who regularly uses the X4 M40i’s Sport or Sport+ driving modes should anticipate fuel economy figures that are noticeably lower than the EPA estimates.

How it compares

The X4 M40i’s fuel economy positions it within a specific segment of performance-oriented SUVs. The Porsche Macan S, for example, with its 2.9L V6, achieves a similar 22 MPG combined. The Audi SQ5, another direct competitor, manages around 21 MPG combined. A Mercedes-AMG GLC 43 Coupe offers numbers in the same ballpark. These comparisons matter to the X4 M40i buyer because they illustrate that the BMW isn’t an outlier; it delivers performance comparable to its rivals at a similar cost in fuel consumption. Someone considering the less powerful (but still stylish) BMW X4 30i will see a noticeable MPG increase. You can find X4 MPG across all years to explore your options. These buyers may wonder if they need the M40i power.

Tips to maximize efficiency

Use the X4 M40i’s Eco Pro driving mode when performance isn’t a top priority. This mode adjusts throttle response, gear selection, and other parameters to prioritize fuel efficiency. It won’t transform the X4 M40i into a Prius, but it can make a tangible difference on longer, less demanding drives.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and consume more fuel. Check your tire pressure regularly and maintain the recommended settings.

Avoid excessive idling. Modern engines don’t require extended warm-up periods. If you’re going to be stationary for more than a minute, it’s generally more fuel-efficient to turn off the engine entirely.

Anticipate traffic flow and maintain a smooth, consistent speed whenever possible. Frequent acceleration and braking consume more fuel than steady-state driving. Using cruise control on the highway can help maintain consistent speeds and improve fuel economy.

Consider enrolling in a high-performance driving school. While it sounds counterintuitive, learning proper throttle control and cornering techniques can actually improve fuel efficiency, especially for those who frequently use the car’s power reserves. Plus, it will enhance the overall driving experience. If you’re interested in all Bmw fuel economy data, we have plenty more to see!