Here is a LEGO set that comes with everything you need to build app controlled tracked vehicles. The LEGO Technic 2-in-1 App-Controlled Transformation Vehicle has 772 pieces that you can use to build a tracked racer or exploration truck. Users can rely on the CONTROL+ app to control the vehicle. This toy flips over when it hits a wall, so you can keep going without any interruption.
Both vehicles have bogie suspension to adapt to uneven surfaces. This kit teaches kids engineering concepts through play. The 42140 set is ideal for kids ages 9+.