Nevertheless, their latest creations show other wise. Look at BMW's 2010 X5 M and X6 M. Twin-turbocharged 4.4L V8 producing 555 hp, and launching to 60 mph in less than 4.5 seconds, meaning that these two are the fastest production SUVs ever made! So could this amazing engine come to life in the next-generation M5? Well, it would make wonders.
On the other side though, rumors that BMW will be announcing an all-new engine for the next M5. It would be based on the current 5.0L V10, but with added two turbochargers, and will pair the engine to an F1-style KERS system that will help produce in the excess of 600 hp. That's right, BMW answers to the competition with 'power-war'. Even the 580 hp RS6 wouldn't be able to catch-up!
The new M5 will also care a little about fuel-economy using a new system that shuts down cylinders when they are not needed.
We’ll get more information next year, when BMW debuts the 2011 M5.
Source : [AutoExpress]