I have not yet driven my s2k......
I am waiting for paperwok to go through....but I can assure my brother drove both an he swears I will not be dissapointed....the true M is an absolutly incredible machine, the broad torque curve is a true asset.....its smooth and powerfull no matter how you drive it, but it also is very heavy and loaded with unneeded stuff...I feel that the s2k will be more "sporting" due to the higher redline...it really is a matter of driving style and taste....as far as the new M.....all I can say is that BMW really has set the performance bar high....but the cost would force me to look at a Lotus Elise instead...