The Rodius is certainly one of the top three worst-looking cars ever. On the yukometer it goes right up through ugly, accelerates hard (for the only time) through 'so ugly it's cool' and blasts through the cool ceiling into a whole new world of milk-souring unattractiveness.
I hadn't heard of the Aztec, just googled it - OMG
I've had two '77 big block Caddys & quite like that era of Americana.