Well I have a 2005 350Z now, but it's looking like I may need more room in the near future seeing as the Z is my only car. Considering I will need a sedan, I figured I would simply swap out my Z for a G because I'm already familiar with the platform, and I can also keep my simple bolt-on mods for convenience. My Z has about 25k on it now, and I'm looking at G sedans with 20-50kmi. I do believe the G sedans have depreciated more than the Zs, so I should come on top by a little bit, right? There's a good chance I may be incorrect; that's why I'm asking here . If I sold my Z outright and bought a G, what would the difference be? And what about if I traded it in at a dealership (knowing that I will get less for my car)?

Thanks for any help!