What I mean is, what are some things that have happened to you since you got your Z, that wouldn't be possible if you didn't have it. It could be positive or negative.
It have something to do with he performance of the car or anything else.
Whether it be a person that looked at you a certain way (because of the Z) or other cars around OR small details about the car that just made you say, "W-Wow... Well ain't that something..."