We generally don't list board game pieces in the first place, except in a few exceptions like the Topps/Milton Bradley release of 1968. I'm not nessicarily averse to it, but do these have some feature that moves them beyond board game piece to trading card? I see there's a few auto racing cards in the set so it is of interest to me on a collecting level beyond just curiosity.
Edit to add: I would list it as a parallel if I were doing it.
VERY slow trading due to health problems. Not transferrable so safe to trade with, just moving is painful and can't always access the cards.
Cardboard History My COMC
New Collection Website: Cardboard History Gallery (Still under construction)
Tips on how to make your scans look like the card does in hand (No more washed out, fuzzy scans!):