AptoFun 4WD Motor Smart Car Chassis per Arduino - con 4 motori a ingranaggi (DC 3V-6V/1:48) e box batteria(4wd)

The base plate is transparently covered with brown paper, in pictures one finds the plate mostly in brown with paper pictured. The paper does not need to be removed.
For first experiments with an Arduino / Raspberry make this smart car the right thing without high investments.
Tips: The best way to solder the motor connection. Since the connections are very small, twisting on the motor is nearly impossible