The windshield on Ulisse's car is blown completely out when the hit man fires his first shot at it, but when the hit man approaches the vehicle moments later, the windshield is now intact but heavily cracked.
Many location dis-continuities in the SF "test drive" vignette. Also, look for several random appearances of the yellow AMC full-sized sedan in the Marin Headlands chase.
Actor in the band isn't a real flutist. He's holding the flute backwards. Left arm is always across the chest of a real flutist, flute ALWAYS extends beyond the musicians body on the right hand side, not the left as seen in this movie.