well i can get 1 of both cars for about 3 grand.. maybe about 1 -2 grand will be spent on upgrades. I am currently a zx driver n/a engine and I love the body style.. I also am a big fan of the z and want to own one aswell.. being 18 working part time and going to school full time can be alittle stressful, especially when it comes to money and time.. I've only had my car for a year. there is NO DOUBT in my mind that when I get older and have much more experience with these z/zx's I will have a 240z with the turbo.
From what I have read the turbo zx comes pretty fast stock, so if i had that, I can easily throw up the boost alittle, and install injectors, IC, etc. But than the 240 being light having the N/a Z engine should be quiet equivelant to the stock turbo zx??