Here is a LEGO kit that combines with everything you need to build app controlled vehicles. The LEGO Technic App-Controlled Transformation Vehicle is a 2-in-1 car set has 772 pieces. It can be controlled with the CONTROL+ app. You can use it to build a tracked racer and exploration vehicle. It flips over when it hits a wall.
This LEGO kit is made for kids ages 9+. It features suspension, cockpits, and tracks on both vehicles.