It is somewhat of a reality of the times with how powerful cars are getting. If we are honest with ourselves we realize that the M cars have become muscle cars more than track cars. Is anyone seriously racing an X5M on a roadcourse? Is the F10 M5 limp mode that kicks in after a couple laps really that much fun on the track?
The M cars have become more about power than finesse. They need all that power and torque as they have also become so heavy. The F10 M5 is fat at 4313 pounds. It also has shied away from the perfect 50/50 weight distribution to 52.4/47.6 front to rear. Expect this to get worse with the addition of all wheel drive.
BimmerBoost 'overheard' a few things at the LA Auto Show although we have no direct source from BMW to quote which did not even know it was being listened in on anyway. What we can tell you is our report is similar to what the the Germans have been putting out themselves.
The next generation M5 will lose weight courtesy of the G30 5-Series chassis which will ditch most of its steel for aluminum. Expect a 100 pound weight loss at the very least although BMW has been missing its weight loss targets. As all wheel drive will add weight BMW simply will have to get the chassis weight down so that the new M5 does not exceed the F10 M5.
The question mark at this point is whether the xDrive all wheel drive will be standard or optional. Mercedes-AMG offers 4Matic all wheel drive as an option but those of us in the USA know the E63 AMG only comes in 4Matic form. It is certainly possible BMW does the same although this would upset the traditional rear wheel drive BMW fanbase. Moving to all wheel drive is such a huge change we would think BMW should offer the option in the USA especially for those who want a lighter M5 with the traditional power on oversteer characteristics instead of more weight on the nose and understeer.
The engine will be an S63TU variant with horsepower pushed up past 630. BMW will likely deliver over 600 horsepower at the wheels although they will not get into a power war on paper. They are underrating their turbo motors so expect the crank and wheel numbers to be close.
As of right now we can say expect an all wheel drive M5 with 630+ horsepower mated a dual clutch transmission with a curb weight just a tad under the F10 M5. As stated things change but this is where we are headed.