Anna drives a Dino 246, which although was produced by Ferrari from 1968-1976, was not allowed to be called a Ferrari, as its engine only had 6 cylinders, instead of the normal 12. The one shown here followed a common practice of buyers who didn't like the fact their "economy" level Ferrari (it cost about half of the top-of-the-line 365) was not readily identified as a Ferrari, and people would buy Ferrari badges and put them on the car anyway.
The pool at Strasser's house was frequently used in Quinn Martin productions, and is seen numerous times in various shows in the 1970's, including several Cannon and Barnaby Jones episodes.
Guest star Joan Van Ark's third and final appearance on Cannon.