The new BMW M5 hasn’t exactly had an easy launch. It’s faster, more advanced, and more powerful than ever—but also heavier, thanks to its plug-in hybrid setup.
For some enthusiasts, that extra weight takes the edge off what used to be a razor-sharp performance sedan, so naturally, the aftermarket stepped in.
Instead of trimming weight, they went the other way, by turning the power dial all the way up to 11. The result? A nearly 1,000-horsepower M5 that completely changes the conversation.
Because if you can’t make it lighter… you might as well make it ridiculous, right? At least that’s what German tuning house G-Power thought.
From 717 HP To Nearly 1,000 Wild Stallions
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Out of the box, the latest BMW M5 already pushes out 717 horsepower from its twin-turbocharged 4.4-liter V8 and electric motor combo. That’s a serious number, even by modern super sedan standards.
Still, German tuner G-Power clearly wasn’t impressed. Their GP-1000 package takes things to another level, boosting output to 986 horsepower and a massive 921 lb-ft of torque. That’s hypercar territory, right up there with machines like the Ferrari SF90. At that point, “fast sedan” doesn’t really cover it anymore.
How They Did It
Extracting nearly 1,000 horsepower isn’t just a simple ECU flash. The full package includes upgraded catalytic converters, a new exhaust system, larger intercoolers, and a carbon intake setup. All of it works together to unlock significantly more performance from the already potent hybrid V8.
If you’re not ready to go all-in, there’s also a software-only upgrade. Even that pushes the car to around 838 horsepower, which is still more than enough to embarrass most things on the road. Either way, it’s obvioust that the platform has serious headroom.
Still Heavy—But Now Brutally Fast
One of the biggest criticisms of the new M5 is its weight. The hybrid system adds roughly 1,000 pounds compared to older generations, which changes how the car feels in corners.
More power doesn’t completely fix that, but it does make the car feel far more aggressive in a straight line. And with nearly 1,000 horsepower on tap, you’re not going to be complaining about acceleration anytime soon.
The standard car already does 0–60 mph in around 3.4 seconds. With this kind of power, it’s safe to say things get properly wild.
More Power Than BMW’s Own Flagship
With the GP-1000 upgrade, the M5 actually surpasses BMW’s own most powerful production model, the XM Label, which tops out at “just” 738 horsepower.
That’s a big deal, as it shows just how much potential is hiding in this new hybrid setup, even if the factory tune is relatively conservative by comparison.
Power Like This Isn’t Cheap
Of course, there’s a catch. The full GP-1000 package costs €31,297 (around $36,700). That’s not pocket change. In fact, it’s literally the price of an entirely separate sports car like a Toyota GR86 or Mazda MX-5.
So you’re basically choosing between one insanely powerful M5… or a completely different driving experience altogether. Then again, if you’re already buying a new M5, you’re probably not cross-shopping it with a Miata.
Fixing The M5’s Biggest Criticism?
Not exactly. This upgrade doesn’t make the new M5 lighter, and it won’t magically bring back the raw feel of older generations. However, it does lean into what the car has become.
A brutally fast, tech-heavy super sedan that can outgun almost anything on the road, and with close to 1,000 horsepower, it’s hard to argue that it’s lacking in excitement.