A closeup shot of Herman's driver license shows his date of birth as 6-21-1815.
If adjusted for inflation, the USD 375.00 price for the Convertible, in 1966, would be worth approximately USD 2867.58 in 2018.
The car Herman buys for Marilyn is a 1951 Chevrolet Styleline DeLuxe convertible.
Frank Gorshin (Fair Deal Dan) had already appeared as the iconic 'The Riddler' on Batman (1966) in January 1966. He was in a total of 10 episodes of that show.
Cary Grant is mentioned as interested in purchasing the Convertible. 1966 was the year that Grant's daughter, Jennifer Grant, was born and that he retired from acting.