2012 BMW M5

If the new rumors are real, the new BMW M5 is to run on a X5M and X6M borrowed V8 that has been significantly improved to churn more power than the V10, to a whopping 570hp. Also adding to the astonishing figures is a new dual-clutch transmission based on the M3’s gearbox.
 
http://nexus404.com/Blog/2009/12/24/2012-bmw-m5-rumors-surface-new-bmw-m5-to-open-doors-to-brave-new-world-of-performance/