Quote Originally Posted by Motor Trend
2008 BMW M3 - Auto Shows
The M3 returns with more than 400 horsepower from a high-revving V-8.
BY MIKE DUSHANE, PHOTOGRAPHY BY HANS G. LEHMANN/HIDDEN IMAGE
February 2007

...we expect it to produce approximately 410 horsepower and 310 pound-feet of torque...
That HP/Tq difference sounds like a V8 honda engine to me. I dunno

...The M3’s V-8 will produce about as much torque as the turbocharged inline-six in the 335i, but it will be fully a third more powerful. We’ve posted 4.8-to-4.9-second 0-to-60-mph times in the 335i, and we expect the M3 to do that sprint in less than 4.5 seconds. Top speed, as with most performance BMWs, will be limited to 155 mph...

for 30k more it doesnt go much faster than the normal 3 series? hmm. and limited to 155? not like i'd be goin any faster than that but..thats it?