Katie has the "Hamm" car, Emilee has the "New Mater"...my personal favorite is the "Fabulous Hudson Hornet" version of Doc Hudson. It just looks cool.
Oh, and yes, THEY PLAY WITH THEM ALL.
I think it would be too cruel to put a sealed toy in front of my kids and tell them they could only look at them.
I collect toys to have toys, not as an investment.
And, yes, I may very well play with them on occasion, too.
That rule applies to the little ones as well as the big ones.