Moving Truck

I liked the original design but my son really likes to put things inside other things (he is 2 years old) and he also loves trucks.
So first I removed the "walls" in the rear windows, to let him see the interior. That is the v1 file.
Then I removed the "seat" in the front and also the walls in the rear windows, that is the v2 file.

As the "cargo" part is very little, I decided to remove all the interior keeping the windows open, so that is the v3.