A 'Physicians' ambulance is shown leaving the airport. The ambulance that is shown arriving at the hospital has the words "Emergency Care Unit" and two red lights on the side facing the viewer, as well as a small dome on the top rear of the vehicle, none of which are part of the ambulance shown leaving the airport.
In the first few minutes, the ambulance leaving the airport is a 1970 Cadillac. When it arrived at the hospital, it is a 1972 model. The tail lamps are different.
When first looking to find Cordell the call goes out to look for a blue Lincoln but then later they call to look for a black Lincoln.
Mc Garrett's car is usually a Mercury Marquis, but at about 38 minutes in he is seen in the highway shot driving the older Mercury Park Lane.
McGarrett gets a call from a Harry Logan (Patt Patterson), from Washington, D.C. Just before Logan is shown on-screen, there is an establishing shot of what was apparently supposed to be the Capitol Building in Washington. The domed building shown, however, is the Pennsylvania State Capitol in Harrisburg (which bears little resemblance to the National Capitol Building in Washington).