Join us as we continue our dedication to providing independent dyno results for BMW's latest M models. As you can imagine, we had been counting the days leading up to our G90 M5's arrival, so you can imagine our excitement this past weekend after taking delivery.
While we have quite a lot of exciting developments to share in the coming weeks and months, our first weekend with the car mostly involved the terrible task of adding a few miles in anticipation for what should be the world's first independent dyno of the new G90 M5. As with a lot of our previous dyno adventures, we were back with our friends at Performance Eurowerks to see just how underrated the G90 M5 comes from BMW. After our experience with our G09 XM, we were eager to see what the G90's hybrid system had in store.
We're not ones to drag out a teaser, so let's dive right into the results! (Video Below)
Our Best Runs Pre Break-in - Dynojet 424:
IND G90 M5: 696.13hp at 5230rpm // 729.59tq at 2420rpm
IND G09 XM: 614.84hp at 6500rpm // 569.14tq at 2380rpm
Assuming approximately 15% drivetrain loss from the xDrive system, that put's our G90 M5 at an insane 820hp and 859lb-ft of torque. Even if you're convinced that the xDrive system has reached a level of efficiency where it's only losing 10% through the drivetrain, the difference compared to the claimed 727hp and roughly 737lb-ft of torque from BMW is stark.
Unlike when we dyno tested our XM which was not fully charged, we were sure to have the G90's battery topped off prior to the trip to PE. Compared to our standard edition XM's dyno test last year and BMW's claimed numbers, it's clear the G90's output is much more inline with S68 Hybrid setup in BMW's XM Label (Red) which BMW quoted at 748hp / 1000Nm. Regardless of the comparison, and to no one's surprise, the G90 M5 follows BMW's recent tradition of almost criminally underrating its power outputs.
