Bill Gates is depicted with a bandage on his forehead, indicating that he somehow survived getting shot in the head in the movie, South Park: Bigger, Longer & Uncut (1999).
For some reason, when Randy is at the IT dealership he is seen in a Purple shirt instead of his trademark Teal shirt.
Donald Trump is one of the investors for Mr. Garrison's new vehicle, IT. In seasons 19 and 20, Mr. Garrison portrays a parody of Donald Trump in his campaign for President of the United States.
John Travolta complains about airline travel as his reason for trying out a vehicle called "It". Jett would also be the name of his IRL son, since another word, jet which is pronounced the same would be a word used for airplanes for airline travel.