I have not tested this in other rulesets, just SWADE. When you distribute loot via Party Sheet, it does not give Vehicles to assigned players, they just remain in the Party Sheet. SWADE may be unique in that vehicles are one of the tabs for player inventory (I think the tabs are SWADE only too) and this may have been overlooked.
https://www.fantasygrounds.com/forum...1&d=1703512057