Trivia: In the scene where Foley first visits Rosewood's apartment, he at some point pauses and looks at a poster of Sylvester Stallone from the movie "Cobra" (1986). Stallone was originally supposed to star in Beverly Hills Cop (the first one) as Axel Foley (or his name was going to be Axel "The Cobra" Cobretti). The script was changed for Eddie Murphy, removing a large amount of the action sequences from the movie. Many of those sequences were later used in "Cobra." The shot of Foley looking at the poster is a reference to this fact.
Trivia: The cement truck that Billy drives has a sticker saying DS/JB Construction Company. DS and JB stand for the film's producers, Don Simpson and Jerry Bruckheimer.