He's adding a new element to his play with the Big Red Car. A bit more imagination, and his desire to involve some of this personality toys in play.
This evening he pointed to a cardboard box and said, "I want to drive the Big Red Car, Daddy."
First he wanted to fill it with petrol (gas to Americans), and then he wanted to have his friends Teddy, Bunny, Doggy and Henry ride in the car too.
I told Ed that the green cup in the picture held some pretend petrol, and he then poured it into the corner of the box.