Some territories will not have live events.
From my experience in the National finals, its best to be prepared driving in any car, and in every condition. Expect them to have racing in night time, in the rain, and in reverse tracks.
Hell, i would go as far as to say we might even get to drive GT7 in the finals, because thats what we did in 2013 finals before GT6 was released.
EDIT: For reference, we drove the Delta Wing in Matterhorn short for the bracket seeding qualifier.