Considering trading my '15 base model auto for a heavily modified '09 sport trim manu

Chasingstatus

Sounds like you might already have your mind made up. Just think though, would you be mad/irritated if he turned around and sold it for more than the 09 is worth? I'm guessing that's why he wants the trade if he's outgrown the car. Have you seen it in person? How was the maintenance for his 8k miles a year? 50k miles is alot. Also a stock z sells a bit quicker than a modified one. Reaches more money also being auto, less miles, and 7 years newer. I wouldn't be able to because I'd feel he "got me". Personally, I'd sell yours for 17-18 and offer him 14k. If he didn't take it buy a z you wanted (6mt) I hope that makes sense, at the end of the day it's your call so do what you thinks best for you.

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Another one bites the dust....