The "Fetzer valve", when Lucinda the mechanic is giving the Sheriff her findings about Mona's car, she says the "Fetzer valve" had been punctured. A "Fetzer valve" is a fictional part of an engine, introduced in the movie Fletch (1985).
The first thing to appear onscreen is a little blurb about the Yugo car company using the town of Verplanck as a test area for their new model years ago. Every vehicle in town that is not a truck is a Yugo, except the police cruisers, which are Plymouth Horizons.
Every character's automobile has personalized plates.
Neve Campbell was also working on Party of Five (1994) and Scream 3 (2000) while shooting this film.