Three different modifications were applied to the regular Automoblox car to improve the design. This includes a color change from the original, a new winding gear for the music box and the actual music box. The new and improved design provides auditory stimulation and is overall more aesthetically pleasing.
Modification 1
![Picture](/uploads/1/7/7/5/17759983/2154474.png?687)
This modification fits onto the rod that connects directly to the music box. The ridges make it easier to wind up the music box within the car.
Modification 2
![Picture](/uploads/1/7/7/5/17759983/6718946.png?689)
This rod connects directly to the music box located inside the the back of the car which, when wound, allows the music box to operate.
Modification 3
![Picture](/uploads/1/7/7/5/17759983/6637264.png?693)
This modified car back includes a music box within to provide auditory stimulation to a child