BMW M5 Weight Gain: Performance Upgrades and Why Owners Choose Enhanced Mass

The BMW M5 has long been celebrated for its blend of luxury and performance, but many enthusiasts discuss the subtle weight gain that comes with high-performance modifications. While the base M5 typically weighs around 4,200 kg, after optional upgrades—such as carbon fiber components, upgraded suspension, and performance exhaust—the vehicle can gain up to 100 kg, significantly enhancing its dynamic capabilities. This added mass contributes to improved weight distribution and tire grip, crucial for track-day readiness and precise handling.

Beyond raw weight, BMW engineers carefully balance these upgrades to maintain the M5’s signature balance between comfort and agility. The intentional weight gain supports better cornering stability and reduced body roll, making the M5 more responsive at high speeds. Performance-focused owners appreciate that every kilogram added is part of a calculated upgrade path designed to elevate both performance and confidence behind the wheel.

In conclusion, the BMW M5 weight gain is not merely a byproduct of upgrades—it’s a strategic enhancement that reinforces the M5’s status as a benchmark in the executive performance sedan segment. For drivers seeking a more immersive driving experience, the added mass delivers tangible benefits in handling and control.

Call to action: Explore how the right BMW M5 modifications can transform your driving—upgrade with confidence and precision today.

The latest M5 arrived with a massive 1153-pound weight gain over its predecessor, and most of that extra mass came from its hybrid setup. Let's dig deeper into the 2025 BMW M5 and see if it can actually stay competent like before, even with the extra heft. What's behind the 2025 BMW M5's weight-gain Let's get real about this weight issue.

BMW's decision to ditch pure ICE technology in favor of a plug-in hybrid powertrain is the main culprit behind the new M5's extra. It represents the single biggest weight increase in the history of the model, with the electrified M5 around 24 percent heavier than its direct predecessor. The new M5 is 1,020 lbs (463 kg.

Though we think BMW M will manage the M5's handling aspects well despite the weight gain, an inherently light car will always be better versus a heavy car made to drive like a light car. The BMW M5 G90 tips the scales at 5,390 lbs because of the extra hardware commanded by the plug. The electrified powertrain comes with a big weight gain however, as the '25 M5 now tips the scales at 5,390 pounds (2,445 kilograms).

What really underscores the M5's weight gain is comparing it to the new 2025 X5, which is no welterweight at 4,998 lbs. But it's a midsize premium crossover, not a performance sedan. BMW just debuted the new 2025 M5: A twin-turbocharged, V-8, all-wheel-drive hybrid sports sedan with 717 horsepower.

It also weighs 5,390 pounds, which makes it heavier than some electric sedans. This year's model also gets a four-figure weight gain, to nearly 5,400 pounds. That's roughly as much as a Ford Expedition, or as much as a BMW 3 Series sedan with a Mazda Miata on its roof.

BMW says 882 of the M5's new 1,000-plus pounds is from the big new hybrid battery, electric motor, and other hybrid components. The new 2025 BMW M5 is the most powerful M car to date (ignoring the XM SUV), but even its 727 hp and 737 lb-ft of torque isn't enough to get its tremendous bulk moving swiftly. With a curb weight of no less than 5,390 lbs, the new M5 G90 is over half a ton heavier than the outgoing M5 F90, and that weight brings a noticeable performance penalty.

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