The BMW M5 G90 Weighs More Than a Tahoe - Here’s Why Enthusiasts Are Sticking With the F90

If you’re shopping for a sports sedan that’s light on its feet, a Mazda Miata might come to mind. A BMW M5? Probably not. The M5 has never been a featherweight, but it was always respectably lean for its class. That’s changed with the new G90-generation model. The 2025 M5 tips the scales at 5,390 pounds, 34 pounds heavier than a 2021 Chevrolet Tahoe LS.

Yes, a three-row SUV. Enthusiasts are scratching their heads, and many are turning to the used market for the previous-generation F90, which weighs a full 1,000 pounds less.

The weight gain comes from a plug-in hybrid system that adds roughly 882 pounds of hardware. BMW bumped horsepower to 717-100 more than the F90 Competition, but the extra mass shows up in the numbers. 1. Braking from 70 mph takes 157 feet in the new car, 10 feet more than its predecessor.

BMW loaded the G90 with adaptive suspension, rear steering, and carbon-ceramic brakes to compensate, but you can’t engineer away physics.

Then there’s the price. A new 2025 G90 starts at $123,300. A used 2021 F90 averages around $62,000, according to CarBuzz Marketplace. That’s a $60,000-plus gap. Buyers get a lighter, faster car with supercar acceleration and a lower price tag, but they also take on the risks of a high-performance used car: no warranty, potential neglect, and expensive repairs.

A pre-purchase inspection is a must. Still, for the enthusiast who values agility and raw performance over hybrid efficiency, the F90 remains the smarter, more thrilling choice.