My young son noticed last year that whenever there is a car chase, no matter how many cars, the good guys are always in (sponsor) Ford SUVs and the bad guys are in Chevy's.
ROFLMAO! They also enforce the old Star Trek device of the "DOOMED EXTRA." In the old Star Trek if a crew member you've never seen goes out with the gang on a mission, you know that crew member is gonna die. Same with 24. When someone you've never seen goes along with Jack to check something out, he's a goner!!!! In fact, I saw Keifer Sutherland on a talkshow and he said that none of the actors want to go out on a mission with him because they know they won't return!