2003 C320 Coupe\71 220 gas, 4-speed\95 Talon TSi AWD\97 J30\79 GS1000S\80 SR500\'69 Datsun 2000
Parked for half a century? O dear. I can't even begin to think of the work it'll need before being roadworthy, starting with every rubber seal. In light of that, it shouldn't be worth very much. However, the collector market's insanity being what it is, we won't know until it's sold.
I don't know of any reason it'd qualify for classic, any more than a man's wise just because he's old.