(https://1.bp.blogspot.com/-869UQRjsuQY/YFVMWLRbI1I/AAAAAAAAX_o/6D1097eXF1E5q-zSED2LDvl5vcjfmxOvwCLcBGAsYHQ/s16000/2021-03-20-KettenkradGoliath.jpg)
The prolific Mr. Bergman recently released his 1:100 scale STLs of the Kettenkrad tracked motorcycle, and the Goliath and Springer demolition vehicles. The Kettenkrad had no driver, so I made one for it. The Springer is on the printer as I type; it should be ready in a couple of hours if all goes well.
I don't really know if these will ever make an appearance on the wargames table, but I figure, better to have them and not need them than the reverse.
(https://1.bp.blogspot.com/-51GQzcQ02ik/YFPJ3OeCVqI/AAAAAAAAX_E/gbqUcRdomqYtrDqJbIUYxMM0MRkuc5L-gCLcBGAsYHQ/s16000/2021-03-19-goliath.jpg)
Here's the Springer demolition vehicle from the same set. Again, it lacked a driver, so I added one myself.
(https://1.bp.blogspot.com/-NlSHT-ZCT8o/YFanWJHKmZI/AAAAAAAAYAM/uqXBD70DCOs6himbKr28UR3s05k1r5YhwCLcBGAsYHQ/s600/2021-03-21-Springer.jpg)
The Springer was based on the Kettenkrad tracked chassis with an extra set of road wheels and lacking the front forks, and carried a demolition charge of 330kg. It was driven near to its target, and then the driver dismounted and it was guided on to the target and detonated, either by wire or by radio control. It was, naturally, pretty dangerous for the driver-controller.
It was a single-use device, and was really too complex and expensive to be justified; only about 50 were made.