the textured rear window trim was included on a 1970 Gran Coupe with an OPTIONAL vinyl top

the "A67" - rear window louver package for the Plymouth E-body included a BLACK vinyl top & the textured rear window trim (so the stainless & paint wouldn't be seen thru the louver)

many stories about louver cars built without the textured trim - but with so few untouched survivors, many owners, 50+ years of modifications/restorations, it's probably too late in the game to figure out how, when & what actually happened during almost two years of "A67" production