When Jon and Ponch are shown entering the freeway before the credits, there is a white VW next to them. In the close-up, there is a blue and white pickup next to them, and the freeway background has changed from urban to rural.
The plane is shown having several lanes to the left of the red car (which is in the far right lane) in a long shot, then in the close up shot the plane is on top of the red car and the car is in the left lane of a narrower three lane road.
The red car mentioned is a 1962 Ford Galaxie 500. It is shown behind Jon and Ponch, then Ponch points it out as being ahead of them, it is then still shown behind them, then finally ahead of them, being replaced by a silver Chevy Vega (which is later replaced by a brown Firebird). The scenery and lane positions when the red car is seen changes between long shots and close ups.
The distance to the tunnel for the airplane increases as it is shown approaching the tunnel.
After the little boy runs into the room the footage of Fawne Harriman is reversed- her hair is parted on the opposite side.
Pilots of light aircraft do not wear crash helmets. Skydiver passengers would do so, but the pilot was the only person aboard.
With a top speed of 77 MPH, a 1970 Honda 600 car could not outrun a 1977 Kawasaki KZ900 that had a top speed with police gear of over 120 MPH.
Death notifications would be made by both officers, not just one of them.
Air brakes lock on in the event of a failure not off.
When Jon and Ponch are talking while riding before the credits, they are both on a filming trailer as the distance between their motorcycles never changes.
The man smashes the blue car's windshield and it shatters into several pieces. Auto windshields are made from laminated safety glass and do not do this. The windshield used was made from "candy glass", a prop made for this type of scene.
The 1970 Honda 600 car shown speeding on the freeway had a measured top speed of 77 MPH. In order to give it the appearance of high speed, other traffic shown is going well under the 55 MPH speed limit.
When Jon is talking the Mrs. Karantz in the foyer, the leather pouch is missing from the back of his belt. This pouch was not a CHP item but instead housed the battery for his microphone. Since this was an indoor shot, a boom microphone was used for sound.
After Ponch gets a ticket for not signaling when changing lanes, he doesn't signal when merging back into traffic after the cops leaves..
When the blue van is seen sliding on the dirt, the sound effect is for tires sliding on asphalt.
The 1970 Honda 600 car driven by Roosevelt Grier is powered by a small 600cc two-cylinder engine, yet the sound heard as it speeds by is that of an American V-8 engine.
When Ponch is trying to slow the runaway bus down on the graveled median, an extra person is visible in the back of the bus, presumably someone connected to the stunt crew.
While Ponch mentions there would not be a citation from the CHP, the FAA would investigate the incident and sanction the pilot for violating Federal Air Regulations for improper trip planning- running out of gas.
Since traffic school is progressive, you must attend the first night prior to the second one. The angry driver was not in the first class, so he would not have been admitted to the second and final one. Additionally, since the driver only saw Ponch when he was wearing his helmet and sunglasses and Jon when he was wearing his helmet, it's unlikely he would have recognized them in civilian clothing without helmets.
When rescuing the driver of the blue van, Jon and Ponch fail to break out the partially open driver's side window, which would have allowed the driver to slide out. Instead, they wait until Baricza and Fritz break out the windshield.
Ponch and Jon are faced with a perilous situation when the man is trapped inside the overturned van with poisonous snakes. They make two elementary mistakes. First, they don't use either their pistols or the shotguns in the assisting police cruisers to shoot and kill the snakes. Second, when they spray the snakes with fire extinguishers, they spray from the back of the van, meaning that if the snakes had tried to escape they would have moved toward the driver. Ponch and Jon should have sprayed from the front of the fan to get the snakes away from the driver.
Ponch calls in the tag for the blue van while chasing it, but he is too far back to be able to read it.