Tractor War Machine and Lanz Tractors

The photo below is of a World War Two Lanz tractor converted for German army use. I found it on a great site with many Lanz models. The video below is a slightly different machine called the Lanz Bulldog D9531,Baujahr 1939, Wehrmachtsmaschine. An intersting combination of tractor and car that probably worked pretty well as either.