Someone opened the box, I don't think they where played with. Since I could take them out, I made use of that and took photos of the individual cars.
These cars have both metal and plastic.
The box and the clear windows look ok, the window is darker, and is not from yellowing, it was made of darker clear plastic.
The outside of the box "set of 3" and reads year 1994 Mattel, but the cars have earlier different dates, car 1988, truck 1986, large truck 1991, on the bottom.
It is what they sent us as a set back then.
I think the only way to get this was through the mail as we did with coupons, not from stores.