Crash and LEARN with this LEGO version of a block car race! Build and rebuild 8+ race cars, then race them along the track, as you find out about Newton's laws, aerodynamics and crash-test safety. Creative prompts encourage tons of personalization. This set includes: Chipboard custom racetrack with levers to race two cars at the same time Includes all 124 bricks you need to build 10 different race cars, with variations in different colors and opportunity to mix-and-match pieces. papercraft extras 64-page book of step-by-step instructions for building the 10 LEGO race cars and a custom track Offers the unique combination of STEM learning and playful creativity in line with Klutz's bestselling LEGO Chain Reactions, LEGO Gadgets, and LEGO Gear Bots. Ages 7+