It could be a flying cars multi passanger system, like flying busses or something, they can only land a a few special stations wait there till the player and perhaps a few random npc´s entered it and then fly along a route of stations and land at each, some npc´s join, some leave and the player can choose to exit or keep traveling, paying a little fee for every additional station.
That way one can travel in flying cars without reaching areas not to meant to be reached and its possible to prevent the player to look at incomplete textured surfaces of night city.