The Car Tool is a tool in Isle of Tune used to create music. It is a car image in a blue circle in the iOS version, but has a green background in the website. Select the tool and place it on the road, then click on go and you can hear some tuned music if you have objects next to the road your car is traveling on. When using the website, you will notice the car gradually changes colours as it moves, and starts with a different colour while placed. But the iOS version, there are 3 car speed settings: blue is regular speed, green is 2x speed, and red is 1/2 speed.