One more thing to say.
Did you ever drive a Turbo Z?
Im saying this because the "Funfactor" depends on where you drive.
I have a 274 BHP N/A Z and a 450 AWHP BMW. on twisted roads the N/A Z is so much more fun to drive then the Turbo BMW. on a light signal start or highway its the Turbo.
Drive both types if you can and see what suits you best. (Gear change point at 7500 N/A with the sound of tripples is one of the best things I ever had -->The smile is much bigger with the Z...).