She's a real beauty! I especially like the way the vinyl roof continues down the B-pillar(?) The fender skirts too, add to the overall impression of sleekness. If I'd seen that ad and lived nearby I'd have been tempted too.
I had a 1970 Coupe deVille, black with a white vinyl roof and white leather interior. She turned heads well into "late middle-age".
My grandfather's last Cadillac was a 1972 Calais sedan. I remember taking it out one night in northern Wisconsin and driving it on the twisty lake country roads. The car handled remarkably well for a vehicle that weighed nearly as much as the Queen Mary and the motor provided effortless power.
In my opinion these were the last of the Great Cadillacs. Now that I am a grandfather I'm considering finding one as nice as this so that my grandson can experience what it's like to ride in the Standard of the World.