Well, I paid $34k for my Z. I just searched within a 500 miles radius of my Zip code for a used Z with comparable miles. Same color transmission, etc. they are selling my car @ $33,054. Z's run high in Tx. More demand than availability here. That means a dealer would give me $30,000 for mine (give or take $1,000 and what the car i was trading for would be.)
$4,000 in depreciation in 18 months. And that value should hold from here till fall? I'm not complaining.
Europe is Europe. We won't have to worry till next gen. By then mine will be paid for.