Well, at the risk of dating myself, I'll tell you how now famous cars actually became famous.
In 1967 I bought a 375HP, 396 Chevelle SS (NASCAR rated at 425HP). I paid about $3800 for it new. Sold two years later for $1100. That car wasn't going to be worth anything - no following! I just saw a cherry go for $110,000 on the cable channels.
During the same time I watched used GTO's, Roadrunners, etc. sell for nothing to a bunch of teenagers. However, the Big 3 had no idea what Americans wanted so they sold them what the Big 3 wanted. Then these cars started to get a following. They survied the gas shortages of the 70's (sound familiar?), the BORING cars of the 80's (getting warm?) and so forth. The bottom line is not what these cars are worth today but what they be worth tomorrow.
Your cars value will continue to drop. It's hard to say when it will turn and start climbing but I guarantee you it will. At the rate they're being smashed and driven into the ground they will be few and far between. When they're as cheap as they're every going to be, I'm going to buy a pretty little SRT6 roadster!
If you bought the Crossfire because you thought it would immediately appreciate I am sorry, that won't happen. But if you're in it for the long haul and take care of your car it will be valuable some day.
I have 10 grand children. One of them will be a gear head, I am sure. When oneis a senior in HS and a good student I'm going to give mine to him/her. Can you imagine being in high school with a 20 year old car like this one? God I envy them!