No one was found injured at the scene on West Roosevelt Avenue, police said.
First Precinct officers responded to a report of gunfire on the street at 9:36 p.m. When they arrived, they found the vehicles empty.
The shots may have been fired from a black Nissan Maxima, detectives said. The Maxima was last seen heading west along West Roosevelt Avenue, a two-block-long street bounded by Nassau Road to the east and Brookside Avenue to the west.
Authorities said anyone with information about the incident may call them anonymously at 1-800-244-TIPS.