Kids can build a Flatbed Truck with Helicopter, then rebuild it into a plane and truck set or 2 toy cars!

A Statement from LEGO
Fun is a component of play. Fun is the happiness we experience when we are fully engaged in something that requires mastery, when our abilities are in balance with the challenge at hand and we are making progress towards a goal! 

LEGO products are about being curious, experimenting and collaborating. We learn through play by putting things together, taking them apart, and then putting them together in different ways. Building, un-building, rebuilding, thereby creating new things and developing new ways of thinking about ourselves, and the world!