special relativity noticing how objects which are stationary appear to be moving when you drive by

Question

All the trees by the side of highway fly by  (to the rear) when you drive straight ahead with  no acceleration or bumps in road and    you seem not to be moving at all  (if you suspend your awareness that you are in a car with foot on gas.)  does this mean  these trees
are the moving frame  with time dilation and length shortening and you aren't (although they think you are?)  Which one is the moving frame?

Answer 1

As long as there is no acceleration between the frames, it really does not matter which one you call the moving frame, because the laws of physics will be observed to be the same in both frames.  That is one of the postulates of the special theory of relativity.  To an observer in the moving car, the frame of the car is stationary and the trees are in the moving frame.  To an observer at the trees, the trees are stationary and the car is in the moving frame.  

Answer 2

Both are frames or reference, one for the driver and one for the trees,

A frame of reference that remains stationary or moves with a constant velocity with respect to another frame of reference is called the Inertial Frame of Reference