A boundary manifold is developed for prime routes: −∑ NT = b4. The exact structure is noted in the rest of the paper for an automobile, or rather an auto- structured set which contains the manifold as prime and maintains the same consistency towards a prime consistency. The four subscript correlates the mapping of four charts in a circle part to an open interval, this covers the whole circle in a calculus mapping. Red and Blue lines are graphed later to show an integer behind the centerfold.