How about these new puppies on the horizon.

Audi S4 (4.2-liter making 344hp and 302 lb-ft of torque)

http://www.vwvortex.com/news/index_s4intro_02.html

Lexus "IS430" (4.3-liter 32-valve V-8, developing some 320 hp)

http://www.thecarconnection.com/index.asp?article=5282

Not to mention the next years BMW M3's that are speculated in be in the 400hp range.