The Household Goods office, or whatever the office is called at your base, will have the "outbound" and "inbound" shipment counselors, who will have all the info on POV entitlements.
If you are going from one duty station to another in CONUS, you are expected to be driving X miles a day, at Y cents per mile, which will be figured into your orders as travel/transit time. You will also get a set amount of per diem for travel expenses during that time. The X miles per day are determined by the JFTR, but you can usually push faster than that and potentially arrive at your destination with a day or to to burn, depending on the X miles total.
Many times I sold a car where the Blue Book was higher (such as Hawaii), used the government air fare to make the move, bought another car at new duty station.
Being a good Navy person, I am sure it's in the double digits, the times I drove Norfolk to San Diego, Long Beach to Jacksonville, DC to Bremerton, etc., criss-crossing the country. I had 4 OCONUS tours, and the Navy shipped my car both ways. One car per uniformed person on the orders, as I recall.
POVs have their own set of regs, different from HHG (household goods), and storage may or may not be covered. Hence, my starting advice to go see the counselors, who are experts at reading orders and figuring out your entitlements. You will learn the ropes on this and get plenty of tips from experienced folks.