S2000, the Merc insurance would be too much to justify it.
But to answer your other question, the ubercharged 4 pulls much much better than the V6. Buddy o mines mom got one. They're pretty nice, but cramped. S2K all the way.

The score is 10-nil in favor of the S2K for those of you keeping score at home...is there a mercy rule in online polling?