Is a 370z my best current choice for a $30k track day car?

RATEDM

Thanks...The S2000 was intially on my list, but I eliminated it for lack of a fixed roof. Not interested in an AWD vehicle like an EVO or a Subie (weight, complexity, and a bit less fun imo).... Also, don't want another Bimmer or Porsche as I'd like something that is relatively cheap for aftermarket upgrades as a function of higher production volume (prices for parts for my Z4MC were 2x-5x the same parts I've seen on 350z's).

Other than cost-to-speed ratio, what do you consider to be the downsides of the 370z as a track toy (that would cause you to advocate an S2000 or Evo over it) in my case? Weight? Power-to-weight ratio? Other?

thanks again...