this article says 450hp
http://www.consumerguide.com/index....l&body=../autochannel/vehicledetail/snap15139
here's the direct quote:
under "model news":
"The existing 540i V8 should be little changed, but the current 2.8-liter six will reportedly grow to 3.0 liters and about 220 horsepower, while the next M5 will be hiked to 450 hp"
http://www.consumerguide.com/index....l&body=../autochannel/vehicledetail/snap15139
here's the direct quote:
under "model news":
"The existing 540i V8 should be little changed, but the current 2.8-liter six will reportedly grow to 3.0 liters and about 220 horsepower, while the next M5 will be hiked to 450 hp"