Vehicles will be included in Stellar Dawn. However, it is not known if the player will be able to pilot them. There are only a few pieces of concept art currently available to the public which contain vehicles. For these pictures please refer to the concept art page.
It is unknown what vehicles will be used for. They could be used as a form of transportation, for merchanting/trading or for combat, though no-one is sure.
The information in this article is not necessarily 100% accurate as the game has not yet been released.