Convertible Four-wheel Drive is a fun storybook that can also be used as a playmat and sit-in vehicle for toddlers. Once unfolded, parent and child can read the text, which describes an exciting day out in a car. The bright, busy illustrations are packed with colourful detail to keep a child interested. Laid on the floor, the book can also be used as a playmat. The boards can then be refolded into a large, sturdy car that a child can sit in and pretend to drive.