Martin Braddock reprises his role of Gordon Parker (credited as "Programmer") from Season 1 as Peggy visits the Intertect office.
Peggy Fair is shown driving a Simca 1000. Chrysler owned a portion of Simca during this period to having one appear is not out of line. It also shows that Mannix wasn't paying Peggy enough to afford a more expensive car.
The police helicopter is a 1966 Bell 47G-3B-1 (N7923S, serial # 6594).
The getaway plane is a Beechcraft Baron (N7811Q)