When Kramer and Gendason are being chased by the police, the shot from outside their vehicle shows the police cars behind them to be black and white. When the shot switches to the inside of their vehicle, the police cars behind them are suddenly blue.
At the end, during the interior shot of Genderson complaining to Kramer saying, "I told you not to take the Turnpike, If we took the Palisades this never have happened", well this makes absolutely no sense for 2 reasons:
1) From that shot they are (as previously noted in another posting) being chased by NYPD blue police cars which clearly indicates they are still within NYS limits (if not to be more specific, NYC limits). There is no "turnpike" in NY, the Turnpike he was referring to is the New Jersey Turnpike, which is commonly referred to as simply "The Turnpike;"
2) Even if it were plausible to interchange taking the Palisades with taking The Turnpike, the Turnpike ends (and becomes NYS Thruway) where the Palisades begins. They are not substitutes of one another.
Elaine gives the man at the pen store Jerry's phone number she says it's 555-2390 but in the Pool Guy episode where Kramer is the moviefone guy, Jerry says his number is 555-FILK (3445)
The car chase is supposed to be in the New York Metropolitan Area, but the footage made it obvious that it was the O.J. Simpson car chase as there were palm trees along the ditches, which wouldn't be possible in a climate like New York.
Who phoned Jerry at his apartment, to alert him of the Bronco chase on TV at the end? There are no viable candidates. George and Elaine are both with him in the apartment. It can't be Kramer or even a friend of any of them since no one knows who is driving the Bronco until after Jerry turns on the TV and the announcer eventually says..."we have just learned the identity of the driver, Kramer"...after which the 3 of them then use hand gestures to acknowledge.
Unless she is pretending to ignore Newman, there is no way Margaret would not have noticed Newman's loud voice, or Jerry greeting him by name...yet she continues to casually read the newspaper until her ex-boyfriend addresses her.
Elaine (Julia Louis-Dreyfus) claims her middle name as Ike in this episode, but later, in episode 8.5, The Package (1996), she claims it is Marie.