BMW has unveiled the new 2025 M5, a powerful twin-turbocharged V-8 all-wheel-drive hybrid sports sedan with 717 horsepower. However, this beast of a car weighs a whopping 5,390 pounds, making it heavier than some electric sedans, SUVs, and even a pickup truck. The curb weight increase is stark compared to previous M5 models and even American competitors like the Dodge Charger Hellcat and the CT5-V Blackwing. The sudden weight gain raises questions about BMW's engineering choices, particularly in the context of evolving emissions regulations. While the new M5 is undeniably impressive in terms of performance, the significant increase in weight may limit its competitiveness in a market increasingly favoring lighter electric vehicles. This shift challenges BMW's traditional dominance in the luxury performance sedan segment and raises doubts about the future of their iconic M cars.