For players that own ground vehicles that have been acquired from the pledge store, making use of that investment is important. However, it is also important to keep in mind that ground-based vehicles are not entirely supported in all hangar locations due to terrain or circumstances of the port.
When selecting an initial spawn location, it is thus important for players that own a ground vehicle choose a location that supports such vessels to ensure that you can access and claim them without troubles. All Personal Hangars will be able to spawn a ground vehicle, but using them is another story entirely as not all locations have ground-level garage exits.
New Babbage or Lorville are good choices for this, if you are uncertain which starting locations support ground vehicles.
A player's spawn location can be changed later, once you are in-game, but you will need to manually move your fleet to another location as your ships and vehicles will not automatically follow..