Overview: Maddie goes for a drive in the car. She uses a special microscope camera to find out how car brakes work. An animation shows how the brake pedal is connected to the brake discs and pads and how they move to slow down and stop the car. Next, Maddie visits a factory to see how a car is made from a large roll of steel sheeting. She uses special cameras to show how robots work with people to put the different parts of the cars together.