Are We Losing the Spirit of the BMW M5? Unpacking the Weight Evolution of an Icon

The BMW M5, a name synonymous with power, luxury, and performance, is undergoing a dramatic transformation with the launch of its latest generation, the G90. However, as we delve into its evolution, one question looms large: has the pursuit of progress come at the expense of its core values? The G90 M5 is now the heaviest ever at a staggering 5,390 pounds (2,445 kilograms). This hefty gain raises concerns about the trajectory of the M5 family—and whether it’s still the driver’s car we once cherished.

The Lightweight Beginnings

When the original BMW M5 E28 burst onto the scene in 1985, it redefined what a sports sedan could be, weighing in at a mere 3,153 pounds (1,430 kilograms). Its lightweight build contributed significantly to its performance, agility, and driving dynamics. The E28 was celebrated for its mix of power and eloquence, appealing to purists and new enthusiasts alike. The lightweight nature allowed drivers to experience a unique balance, feeling every twist of the road.

Gradual Increases: E34 and E39 Generations

The tags of progress and luxury started to find their way into the M5 lineage as it evolved through the E34 and E39 generations. The E34, introduced in 1988, weighed 3,638 pounds (1,650 kilograms) and offered a more refined driving experience without straying too far from the original’s ethos. The E39, which debuted in 1998, slightly increased this weight to 3,737 pounds (1,695 kilograms) but became widely regarded as the pinnacle of M5 development. Aesthetic appeal combined with a powerhouse performance of 400 horsepower ensured the E39 held its place in the hearts of fans.

V10 Era: The E60 Mixes Power with Heft

As the iconic series ventured into the E60 generation, the M5 introduced a high-revving V10 engine that helped the car weight balloon to 3,869 pounds (1,755 kilograms). While the engine's exhilarating sound and character created excitement among enthusiasts, it marked the beginning of a noticeable shift toward heavier builds. The connection between a driver and the road that characterized earlier models started to feel a bit diluted. The E60 established itself as bold and powerful, but many wondered if weight was becoming a hindrance to its storied agility.

Turbocharged Evolution: F10 and F90

The arrival of the turbocharged F10 and F90 generations saw further increases in weight—4,123 pounds (1,870 kilograms) for the F10 and slightly less at 4,112 pounds (1,865 kilograms) for the F90. While turbocharging offered a significant performance boost, the added heft led to stirrings of discontent among purists. The all-wheel-drive capabilities and advanced technology showcased BMW’s intent to keep the M5 competitive, yet debates raged over whether the M5 was truly living up to its lightweight roots amidst the advancements.

The G90: A Heavyweight Champion?

Now, enter the G90—a groundbreaking plug-in hybrid model that marks a new chapter for the M5. With its robust power output of 717 horsepower, performance metrics appear dazzling. However, at a record weight of 5,390 pounds (2,445 kilograms), enthusiasts worldwide are grappling with the implications of such heavy machinery. While some argue that the hybrid powertrain enhances efficiency and reduces emissions, others fear it trades away the fundamental identity of the M5.

A Weighty Comparison: Tracking the M5's Evolution

Weight and Power from Past to Present

• BMW M5 E28 (1985–1988)
  • Curb Weight: 3,153 lbs (1,430 kg)
  • Power: 286 hp
• BMW M5 E34 (1988–1995)
  • Curb Weight: 3,638 lbs (1,650 kg)
  • Power: 340 hp
• BMW M5 E39 (1998–2003)
  • Curb Weight: 3,737 lbs (1,695 kg)
  • Power: 400 hp
• BMW M5 E60 (2005–2010)
  • Curb Weight: 3,869 lbs (1,755 kg)
  • Power: 507 hp
• BMW M5 F10 (2011–2016)
  • Curb Weight: 4,123 lbs (1,870 kg)
  • Power: 560 hp
• BMW M5 F90 (2017–2023)
  • Curb Weight: 4,112 lbs (1,865 kg)
  • Power: 600 hp
• BMW M5 G90 (2025)
  • Curb Weight: 5,390 lbs (2,445 kg)
  • Power: 717 hp

As we peer into the future of the BMW M5, the growing consensus suggests a need for reflection. Will the M5 continue to embody the spirit of engineering recklessness and driving isolation it once forged, or has it unduly prepared to carry the burden of modernity? With the first press drives set for October, the automotive world awaits to see whether the G90 can reclaim the thrilling essence of the M5 or settle into its new identity as a heavyweight powerhouse.