When the car Mannix jumped out of is going over the cliff, it becomes a Ford with vertically stacked headlamps rather than the Dodge with side by side headlamps he was driving during the chase.
During the car chase, the yellow sedan chasing Mannix incurs front end damage when chasing him in the dirt. But when the chase resumes on the paved road, the car is no longer damaged.
During the car chase, in the closeup shot that shows the left front tire of the yellow car, the shadow of the camera equipment is visible.
During the final car chase in the Chevy van, when the van is forced to a stop, two large lights clipped to the front doors shining in to front doors are visible. But when Joe approaches the van, the lights are gone.
During the final car chase in the Chevy van, when the van is forced to a stop, two large lights clipped to the front doors shining in to the front seats are visible. But when Joe approaches the van, the lights are gone.
When Mannix is talking to his client from behind his desk in his office, the shadow of the boom mic is visible in the curtains behind him when he stands up and walks to the left.