Rear wheels on early Zs
 

I'm new to the site and am contemplating purchasing a z car. I've wanted one for years.

Why is it that almost every one I look at seems like the rear wheels are too far forward (as if they are not centered in the rear wheel-wells).

Is there an adjustment for that. It really bothers me. :)

Also, what's the difference between the 240z, 260z, and 280z?

Thanks!