Track Review: 2025 BMW M5 (G90) – Powerful, but Heavy

The seventh-generation BMW M5 is finally here, and it’s more controversial than ever. The G90 M5 not only builds upon the equally contentious design of the 5 Series but also introduces an electrified drivetrain to the iconic business sedan. This plug-in hybrid drivetrain is arguably the biggest point of contention and will likely spark many debates among enthusiasts. Considering the size of the new M5, incorporating an electric motor makes a lot of sense, especially to mitigate the weight, which stands at 5,390 lbs (2,445 kg).

In May, BMW invited us to a track day at the iconic Salzburgring. At the time, the new M5 was still under wraps or hidden in a backroom where I had a chance to film it, but a camouflaged prototype was ready for us. The near-production-ready test mule featured the drivetrain we will see on the road this summer. By combining the S58 twin-turbo, 4.4-liter gas engine with an electric motor, the G90 M5 achieves a total system output of 717 horsepower and 738 pound-feet (1,000 Newton meters) of torque. The S68 combustion engine produces 577 hp and 553 lb-ft (750 Nm) of torque, with peak torque available between 1,800 and 5,400 rpm. The engine delivers its maximum output from 5,600 to 6,500 rpm and has a rev limit of 7,200 rpm. Built into the eight-speed automatic transmission, the e-motor generates 194 hp and 207 lb-ft (280 Nm) of torque.

Although it’s not as powerful as the BMW XM Label, an M5 CS is likely coming in the future. However, it is slightly lighter than the mammoth SUV, which weighs in at 6,094 lbs. The M5 transmits power through the same eight-speed automatic transmission, specifically software-tuned for this model. M xDrive is standard but can be turned off to enable rear-wheel drive only. Additionally, Integral Active Steering is present, with a steering angle of up to 1.5 degrees to help tackle corners at high speeds.

Bigger wheels and tires are integral to this new M5 package, essential for putting down grip and managing the weight when cornering. The 2025 BMW M5 rides on staggered wheels with 20-inch front and 21-inch rear alloys, featuring 285/40 ZR20 and 295/35 ZR21 tires, respectively. These are larger than before and come with performance rubber as standard. The compound brakes feature 410-mm front discs, whereas the carbon-ceramic setup includes larger 420-mm discs. Both use perforated discs, but only the upgraded set has the signature gold-painted calipers