H. Born of necessity , to replace heavy losses , it was greatly simplified to speed production .
Despite addressing the mobility problems introduced by the previous model , the final production version of the Panzer IV -- the Ausf. J -- was considered a retrograde from the Ausf .
H. Born of necessity , to replace heavy losses , Ausf was greatly simplified to speed production .
Despite addressing the mobility problems introduced by the previous model , the final production version of the Panzer IV -- the Ausf. J -- was considered a retrograde from the Ausf .