The vette is nice, but the interior is kinda meh. If he's getting it as a DD he might be happier with the Evo in the long run. Then again he probably won't keep it for any length of time if he's debating this question and you're asking on IA like it may change his mind. He should probably keep whatever he has now.

Resale Value on Vettes is not nearly as high as people think it is, but if we're talking about resale value and that makes a difference to the guy, I even further stand by my opinion that he should keep whatever he has now.