Let me say, first, that I feel the new generation Z is simply one of the most beautiful cars on the road. I absolutely love the styling. Now, that being said, I had to trade my 2003 Touring 350Z in for one huge reason: the ride. I had other regrets, too, after I owned my Z for a few months, but the harsh, bouncy, jarring ride was too much for my fragile back. Yes, I test drove the Z before I bought it. But rather than looking at this purchase from somewhat of a practical perspective, I let my emotions get the better of me. I knew the ride was harsh (much harsher than a sport's car should be in my opinion), but I loved how it looked and its acceleration. So I bought it. After about two months of trying to convince myself that I loved the car I got buyer's remorse in a big way. It's my own fault. Never let emotions make expensive decisions. As someone else mentioned, the tires began to seriously feather to the point where it sounded like a dump truck coming down the road, and Nissan did nothing to help the situation. The impracticality of a two-seater with very little storage space also became a big problem once I started using the car in real-world situations. Visibility is poor out the back window.
So, my advise to you: If you are single, have another car as a commuter car, don't need to carry much luggage, and have a back and neck that can take the pounding this car will definitely hand out, then the Z is your car.
For me, I am SO happy I traded my Z in on an Infiniti G35x! The ride is much better without sacrificing handling, the engine is basically the same as in the Z, and in real-world driving the G is more user friendly.
Get an Infiniti G35 coupe!