304) was a demolition vehicle of the German Wehrmacht in World War II.
To make the vehicle capable of carrying a bigger payload without the motorcycle-style front fork of the original, two pairs of overlapping and interleaved road wheels were added to the aft end of the running gear on each side; giving three outer and three inner running wheels.
Its task was to carry a charge of 330 kg (730 lb) high explosives under armor protection towards a target and detonate it there.
A driver, sitting in the back of the Springer, drove the vehicle close to the target before dismounting.
[1] The Springer showed the same problems as other remote-controlled demolition vehicles: They were expensive and not very reliable.