2-in-1 fun – Build the first flip vehicle in LEGO Technic history with this LEGO Technic App-Controlled Transformation Vehicle (42140) set, featuring a tracked racer and tracked exploration vehicle See the model flip! – The vehicle flips over when it hits a wall or can be flipped by hand to reveal the brightly colored tracked racer on one side and an orange exploration truck on the other side CONTROL+ App – Kids can use the app to steer the vehicle, complete fun challenges and see driver stats. The app automatically switches screens to match the vehicle when the model flips Designed for kids aged 9+ – This app-controlled flip car toy features suspension, cockpits and tracks on both vehicles, plus a truck bed on the exploration truck for kids to explore as they play Suspension – Both vehicles have bogie suspension, which allows the tracks to adapt to uneven surfaces