Ok so I'm pretty bad shape on my current loan. I have an '07 VW Jetta I owe way too much on, about $17,500...I looked it up on KBB, and the trade in value for 69K miles is like $8,500...however, It still qualifies as a CPO, till 75K miles, in which case raises it to $12,500. So the question is, in the long run is it gonna benefit me to sell it to CarMax now before it's "just used", or just keep it anyway? To me, I'd still be upside down, but better $5K upside down than $9K....any suggestions?