Autoweek has an article on the cars that have recently depreciated the most and a list of the ones that have appreciated the most... BMW 2002's (I loved that car had a couple when I was young and they were new) were down 33%... Lately these cars had exploded in value, jumping up 3x what a nice one was going for a few years ago so I suppose a correction was in order.. Porsche's are up 159% over the last year... The silly thing is both of these cars are "mass market" cars. Other than the fact that they are really old, there's nothing that makes them particularly collectable. They made thousands of them, almost all the same spec (not a lot of options or variations).. And I see other higher production cars going for silly prices... I can understand a silly price for an Enzo era V12, but a 911 is pretty much a 911 and there's no reason for these prices to take off other than a dealer is sitting on a dozen of them and has found a few suckers and now everybody thinks the rotten (early 911's had horrible rust issues) sitting in their garage is now their retirement plan..