 2 "Kettenkrad" light tracked vehicle, NSU Werke at Neckarsulm developed and built around 50 Springer demolition vehicles in the final year of 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.It was powered by thesame Opel Olympia engine of the "Kettenkrad".