80 MPG combined. It sounds impossible for a performance-oriented Gran Coupe, but that’s exactly what the 2025 BMW i4 M50 delivers. More accurately, it’s what the i4 M50 promises, and it fundamentally alters the ownership equation for a car that is luxurious, practical, and brutally quick. This isn’t some hair-shirt economy car; it’s a proper BMW M product that happens to sip electrons rather than gasoline.

City and highway performance

The i4 M50’s EPA ratings are remarkably consistent: 80 MPG in the city, 80 MPG on the highway, and 80 MPG combined. This near-identical performance across different driving conditions speaks to the inherent efficiency of electric powertrains. Unlike internal combustion engines that suffer in stop-and-go traffic, the i4 M50’s electric motors thrive on regenerative braking, recouping energy that would otherwise be lost as heat. Highway driving, typically a drag on EVs due to aerodynamic resistance at higher speeds, is also managed admirably by the i4’s carefully sculpted body and efficient motors. This consistent performance is a huge plus for drivers who split their time equally between urban commutes and longer road trips.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2025 BMW i4 M50 at a mere $950. This figure is based on driving 15,000 miles per year and assumes the national average electricity price. To put this into perspective, many gasoline-powered vehicles, even relatively efficient ones, can easily cost twice or even three times as much to fuel annually. This substantial cost savings is a major draw for i4 M50 buyers, who are often drawn as much to the cutting-edge technology and performance as they are to reducing their lower fuel costs and fuel bills. Given current events, the actual cost depends on your local price of electricity. Be sure to search for all Bmw fuel economy data if you still aren’t sure.

Real-world expectations

While the EPA ratings provide a standardized benchmark, real-world fuel economy can vary significantly depending on driving style, road conditions, and ambient temperature. Aggressive acceleration and frequent use of the i4 M50’s strong power will certainly impact energy consumption. Similarly, extreme cold or heat can reduce battery efficiency. However, even under less-than-ideal conditions, the i4 M50 should still deliver impressive efficiency, substantially outperforming most gasoline-powered alternatives. Knowing the I4 MPG across all years helps you to better understand how your driving might stack up against your needs.

How it compares

Compared to other performance-oriented vehicles, the i4 M50’s efficiency is truly remarkable. A comparable gasoline-powered BMW M3 Competition, for example, manages only 19 MPG combined. Even hybrid performance sedans struggle to match the i4 M50’s numbers. The Lexus ES 300h, a hybrid known for its efficiency, achieves 44 MPG combined, a far cry from the electric BMW. Other electric vehicles like the Tesla Model 3 Long Range achieve approximately 134 MPGe combined. The Polestar 2 Long Range Dual Motor achieves approximately 107 MPGe combined. The i4 M50 buyer isn’t necessarily choosing between EVs based on efficiency alone; they’re prioritizing the BMW driving experience and the cachet of the M badge, and happily accepting the impressive efficiency as a bonus.

Tips to maximize efficiency

Take advantage of regenerative braking modes. The i4 M50 offers adjustable regenerative braking settings, allowing you to tailor the level of deceleration when you lift off the accelerator. Maximizing regenerative braking recovers more energy and reduces the need to use the friction brakes, extending your range.

Precondition the battery. Before heading out on a drive, especially in cold weather, use the BMW Connected app to preheat the battery while the car is plugged in. This warms the battery pack to its optimal operating temperature, improving efficiency and maximizing range.

Use Eco Pro mode judiciously. Selecting Eco Pro mode softens the accelerator response and reduces energy consumption by limiting certain functions like climate control. While it might not be ideal for spirited driving, Eco Pro mode can be beneficial for maximizing range on longer trips.

Minimize aerodynamic drag. Remove any unnecessary roof racks or external accessories that can increase wind resistance. Ensure your tires are properly inflated, as underinflated tires increase rolling resistance and reduce efficiency.

Plan your route carefully. Use the navigation system to find the most efficient route and identify charging stations along the way. Avoiding congested areas and minimizing stop-and-go traffic can significantly improve your overall energy consumption.