>>28548482
In the past few decades, Z cars have competed with the Mustang GT and Camaro SS of their respective generations. I can't say much about the other models, but the 350Z and 370Z both slightly edged out the others from a performance standpoint and were the same price or a bit cheaper depending on your locale.
The Camaro's gone (for now), and the new Z (at least the performance trim) seems to be as fast as the S650 Mustang for the same price, but I'd agree that the Supra (if you're short enough to fit in it) or Corvette are now so competitively prices that there's very little reason not to go for those unless the other cars are being sold at a discount.