Rare

Is it Rare? Yes I think so, does being rare make it worth more, NOPE!
ding ding ding we have a winner!

All of our cars are rare. There are more Vipers running around my town at any given time than Dusters.
And in case no one has noticed, they quit making 1960s and 1970s vehicles several decades ago. Factor in attrition and they are all rare.

Doesn't mean they're (all) worth anything though.