What series or collection are these?

It doesn't seem to mention anything on the front or back of these cards, but there are clearly six of them grouped together. I've got the VWbug somewhere and I think the Jeep so all I'm really missing I think is the bison.
on a separate note tomorrow, I'll be receiving some cars from diecast direct I think these are green world cars. One is the 55 black Cadillac from the Godfather. The other is the Buick roadmaster from the movie Rain Man. Both just kind of struck me as being fun to have. And if you're not having fun then what's the deal?
Discussion
Grateful beyond words that THIS ISN'T REDDIT
We've got kind folks here
- Hey I hear you Chris now I can see 57 on the sides of the cars. But since last Friday I’ve been laboring deep in the Arduino mines designing fabricating and coding. Might say I was in a serious daze last nite so I reached out for help. Good news is that my new fully automated start gate and LEDs are just about working. — AbbyNormal
I like these! Especially the Bison, J10, and Baja Bug.
Good score, I'm partial to the cars over the off road stuff. D-muscle is my pick from this bunch.
AbbyNormal, where did you find these? I've like never seen them anywhere.
- They are appearing in our local big box stores - going to go check Target and Dollar store tomorrow. — AbbyNormal
- Our local Safeway had 4 of the stand up displays of them. — johnson9195
- @Johnson9195 We don't have Safeway's up here unfortunately! — ManiacMotorsports
Looks like they're the 57th Anniversary set. The Bison is the chase piece.