LEGO MINDSTORMS Robot Inventor
This forklift requires one piece of string, which is not included in your kit, but just about any kind will do, including fishing line.
The forklift can pick up and lift loads on the pallets, drive around, and place the loads on a platform or back on the ground. The Front Drive Platform driving base is used to get the weight balanced enough to lift and carry loads.
Operate it yourself with the remote control program, or try the autonomous program to see it use the distance sensor to locate a platform and move loads to and from it.
Front Drive Platform
Pallets and Platform