The purpose of a "command car" is to setup "forward or incident control" with an overview preferably of the job ie hill top.
This is to direct resources, provide sitreps to group base,region etc,establish VHF fireground channel and sectors on the fireground,and liasing with incoming strike teams,and run a log of the incident.
They shouldnt be in an area where a fire can impact the crews working in that vehicle, and any GO/DGO worth their salt would know that and not place themselves in that position.
True,they might have the speed etc to escape but what if there is no safe exit