The initial chase scene the driver of the green mercury is shown inside the car and a sunroof is visible. When he turns the wrong way and the elevated view from the camera shows a solid roof.
Dan asks Chin to call Steve on the carphone, but Steve responds (in stock footage with his mouth obscured) as though the call came from Dan.
Al Eben appears in 54 episodes of Hawaii 5-0. A few times he is uncredited, but mostly credited as Doctor or Coroner. This is only time his name is misspelled. Al Eban is incorrect in credits.
When Susan Bradshaw (Susan Dey) was driving the Ford Bronco, the surfboard business sign on the left side of the car was tearing and coming off. When parked at the marina the sign was fully affixed and intact.
While Susan had a purse when she showed up at Anderson's, she did not take it with her when she ran. But she is somehow able to purchase a new outfit and board the bus to visit her brother, who operates a surfboard business.