Go and get the DLC "Old World Blues." You get you're own place called the sink, complete with the ability to grow plants.
As for Vehicles, the engine can't handle them and it's pointless because the maps are very small compaired to Fallout, Fallout 2 and Fallout Tactics and there is fast travel.
This seems like to should go here ====> http://www.gamesas.com/index.php?/topic/1243132-fallout-4-speculation-suggestions-and-ideas-41/
Oh and welcome to the Forum.