CLAIMED 1 of 1 '69 notch??????

67, 68 and 69. Notchback as opposed to Fastback. The fastback was the more sporty of the two and more popular for some strange reason. Maybe it was the psychedelics of the late sixties.
Possibly, but the fastback was also 200 lbs heavier in the *** end making it great for drag racing. The vert was also heavier with extra bracing and extremely flexible because of the top removal, The sport coupe "notchback" was was the lightest and stiffest of all 3 variants