i used to collect the 'promo' models that the dealers either gave away or sold. for years i had several from the 50's and 60's and a few muscle cars from the 70's. now i only have a couple left. sold a few, traded a few.....really makes me upset to see what they are worth TODAY!
my oldest was a 49 or 50 Plymouth. the first one i remember getting myself was a 1961 Chevy from the dealer in Downtown Indy. the salesman (i guess?) GAVE it to me. i think he was hitting on my Mom, now that i look back on it!
i kept collecting them until the mid '70's. at one point, i counted them and had over 500. if i only had all of them today, i could sell the collection and pay CASH for my Smart!!