19 MPG combined isn’t going to win any awards, but that’s not the main goal of the 2019 BMW M4 CS. This isn’t a fuel-sipping commuter car; it’s a focused, high-performance machine built for extracting maximum thrills on backroads and track days. The buyer drawn to the M4 CS understands, and frankly accepts, that fuel efficiency is less important than raw driving experience. They prioritize corner carving and blistering acceleration over squeezing every last mile out of a tank of premium.

City and highway performance

The EPA estimates 17 MPG in city driving and 23 MPG on the highway for the 2019 M4 CS. The relatively low city MPG reflects stop-and-go traffic, which strains turbocharged engines like the M4 CS’s 3.0L inline-six. Highway figures are more respectable, though not exceptional, as the engine spends more time at cruising speed. Of course, these numbers are highly dependent on driving style. A heavy foot will easily reduce both city and highway figures, while a more restrained approach can yield slightly better results. Restraint isn’t typically high on the M4 CS owner’s to-do list.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 BMW M4 CS at exactly $3,050. This figure is based on driving 15,000 miles per year and using national average fuel prices for premium gasoline, which the M4 CS requires. It’s a substantial sum, higher than the average car owner spends on fuel. However, for the individual who can afford an M4 CS, this cost represents a smaller percentage of their overall expenses. They’re paying for performance, and that performance has a price at the pump. Before buying, check all Bmw fuel economy data to ensure you are making an informed decision.

Real-world expectations

While the EPA provides a useful benchmark, real-world fuel economy will vary based on driving habits, traffic conditions, and even weather. Expect to see figures that fluctuate around the EPA estimates. Aggressive driving, frequent track days, and prolonged idling with the air conditioning blasting will all negatively impact fuel economy. Gentle acceleration, consistent highway speeds, and proper tire inflation can help you get closer to the stated numbers. Given the M4 CS’s performance capabilities and the type of driving it encourages, exceeding the EPA estimates consistently is unlikely for most owners. For more detailed reports, you can check out M4 MPG across all years.

How it compares

Compared to its competitors, the 2019 M4 CS sits in a similar fuel economy range. The Mercedes-AMG C63 S Coupe, with its powerful V8, is rated at 18 MPG combined. The Audi RS 5 Coupe, with its turbocharged V6, achieves a slightly better 21 MPG combined. The Porsche 911 Carrera S, depending on configuration, also lands around 20-22 MPG combined. For the M4 CS buyer, these minor differences are likely less significant than the nuances in driving dynamics, styling, and brand appeal. They’re willing to trade a few MPG for the specific character and performance that the M4 CS delivers. They prioritize the M division’s unique blend of precision, agility, and driver engagement. The slightly less thirsty Audi RS5 might be a more rational choice, but it will not deliver the same emotional and visceral experience.

Tips to maximize efficiency

While the M4 CS is not about maximizing fuel efficiency, there are still a few steps owners can take to save a bit more gas. Avoid aggressive acceleration and braking. The turbocharged engine responds well to smooth, controlled inputs. Every sudden burst of acceleration sends fuel economy plummeting.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which leads to increased fuel consumption. Check your tire pressure regularly and maintain it at the recommended levels, especially if planning a road trip.

Reduce unnecessary weight. Carrying heavy items in the trunk adds to the vehicle’s overall weight, forcing the engine to work harder and burn more fuel. Remove any non-essential items, especially before heading to the track.

Avoid prolonged idling. Letting the engine idle for extended periods wastes fuel. If you’re stopped for more than a minute or two, turn off the engine. The M4 CS’s advanced engine management system is designed for efficient restarts.

Plan your routes strategically. Avoiding congested areas and stop-and-go traffic can significantly improve fuel economy. Use navigation apps to find the most efficient routes and avoid peak traffic times, if your schedule allows.