|I have collected them for a long time and have about 250 in my collection.
Still I do not know that much about them other than I love'em.
They come in 3 basic styles:
Cigar Box - colored plastic with either rubber or plastic tires, these came
in minature "Cigar Boxes"
Speedline - metalized plastic with either rubber or plastic tires, these
came on blister cars
"Cheapie" - the final style which is very cheaply made and do not have
windows or metal bases, these came on blister cards
Some of the plastic tires have silver paint spokes
I found these advertisements recently:
There are track sets and accessories too plus carry cases and display boxes
There is also a gift pack which included 12 cars which I have had a few of
but there is also a giant gift pack that had I think 24 cars. I saw
that style only once and would really like to get one someday.
You Tube Speedline Video