To achieve the effect of cars sliding into each other at Moran Cadillac, an oil slick was placed under the tires of the first car to assist it in sliding. According to the commentary track on the DVD, the film company owned the first two Cadillacs in the row; the remainder were the dealer's. When it came time to do the stunt, the oil trick worked too well—many of the agency's own Cadillacs were badly damaged. Halicki had to purchase all of them.