(PIC) Ken, you've got it right. 'Roof cantilever' and 'sweep cantilever' was available.
For the Polara and Matador Hardtops 'roof cantilever' and 'sweep cantilever' two-toning was available. See the attached photos for more info. A friend owns a Matador with the sweep cantilever treatment. My Polara is a solid color. I think that both the Western and Neo 1/43rd models have flattened the roofline somewhat, but were otherwise decent models for the times that they were introduced.