The ability to recover damaged armored vehicles was essential for Germany in WWII.
Panther tanks returned to the factory for repairs were often re-manufactured as armored recovery vehicles.
Tanks are very expensive and it's easier and cheaper to repair a damaged one than to build a new one.
ARV's often have a large winch inside so they can pull stuck tanks out of the mud, or drag tanks with damaged suspensions onto a low boy trailer.
A giant spade in the back of the ARV can provide purchase so the ARV can pull very heavy vehicles out of the mud.
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