That's a tough one. I really do like how the Z is built around the suspension system, but I like the lightweight and well balanced chassis of the RX8. Plus, I've always been a big fan of Rotary engines: They may not be the quickest thing through a 1/4 mile from a standing start, but when you're trying to evade cops, cones, or a styrofoam wall, few motors can best it.
As for my personal preference, I think I'd just wait til I get a nice solid job and I'm married, and get both.
