The BMW M5 Does Not Disappoint On The Dyno

It’s easy to forget that the new BMW M5 is a hybrid, let alone a plug-in hybrid. It’s a word one associates more with efficiency than performance, but if anyone is turning that idea on its head, it’s BMW. That electric power isn’t really there to save you money on gas, but rather to provide more power across the engine’s rev range in a way that’s predictable and consistent. When you mash that pedal to the floor, you want to absolutely know your six-figure sports sedan is going to respond with urgency and alacrity. This video of a new 2025 BMW M5 on a dynamometer shows just that: consistent performance.

BMW M5’s Performance On Paper

At the heart of the G90-generation BMW M5 is a bi-turbocharged 4.4-liter V-8, which, on its own,

between 5,600 and 6,500 rpm, and 553 pound-feet of torque from 1,800 to 5,400 rpm. That’s mated to an electric motor integrated into the eight-speed transmission, which makes its own 194 horsepower 207 pound-feet of torque. Combined, they produce a peak system horsepower of 717 horsepower and 738 pound-feet of torque going to all four wheels. That power translates to some serious speed. BMW advertises a 0-60 time of just 3.4 seconds for the 2025 M5.

2025 BMW M5 Performance Specifications

While that’s significantly more power than the previous M5’s 600 horsepower, it’s not quicker than the preceding car, at least on paper (the new car is over 1,000 pounds heavier, after all). BMW pegged the previous M5’s 0-60 at 3.1 seconds, but Car and Driver clocked it at 2.8 seconds. We suspect BMW is continuing to be conservative with that estimate.

What The Dyno Revealed

Kies Motorsports, an aftermarket tuning shop that offers modifications for BMW, Porsche, and the

, posted the following video of a stock BMW M5 on the dyno. Note that the dyno data is measured at the wheels, rather than directly at the crank. Even with drivetrain losses, the BMW M5 put down 676 peak horsepower and 721 pound-feet of torque. The second run, it made almost exactly the same power, at 678 horsepower and 723 pound-feet of torque.

When you consider an expected 15% loss by the time the power gets to the wheels, we’d hope it would make about 609 horsepower and 627 pound-feet of torque. In real-world performance, at least in this example, the new M5 is impressive in its final output. As the video host states, “Not only is it stupid powerful, it’s stupid consistent.” Maybe, but putting hybrid power in the new M5 actually seems pretty smart.