The S65 may not be a torque monster, but it certainly has enough for day to day driving. I wouldn't mind another 100 ft. lbs. but you have to admit it does strike a perfect balance as it is.
My '03 E55 AMG was a true "lazy" driver, and all I had to do was think about passing someone and it was done. The M3 requires a different driving style, and is more involved. I look at it as the difference between flying a fixed wing vs. a helicopter.
2011 Sapphire Black/Black E70 X5 M "Torquey"
2010 Jerez Black/Black E90 M3 DCT -Gone-
2009 Montego Blue/Grey E90 335i -Gone-