Today Max thought he'd build a set of doors for his taxi. He decided we'd drive to the library and the supermarket with it. He also decided that he'd tie his scarf once around the neck and once around the body of the car, to make a safety belt. We undecided that one together.
The doors kept falling apart.
So, after a very short while, he decided to revert to the old design.
Much fun was had by all (well, him, mostly).