Monster trucks

I must not know the difference between a tow truck and a monster truck. :)

Christian always brings a handful of cars into my room every morning and today it was Towmater from Cars and two other hothwheel cars.  I thought he said, "Towmater goes on cars," so I took Towmater and drove over the other two cars. He said, "No, monster trucks go over cars!"  Oh, I see- I must not have known that!