This little guy keeps coming back almost every museum I visit; the Goliath. Various version with differing means of propulsion have been produced throughout the Second World War. The main goal of this vehicle was to blow up the enemy. It essentially is a wire-guided bom. An operator would steer it  close to a nearby enemy vehicle via a remote control. Once it was in position, the explosive payload of the vehicle would detonate and destroy the enemy vehicle.

There are two main versions of the Goliath that can be distinguished. The first version is the Sd.Kfz. 302 which featured an electric engine:

Allegedly, the electric motor lacked power and therefore a second version, the Sd.Kfz. 303, was created which had a Zündapp petrol engine. It’s quite a bit larger than the electric version.