After Mannix and Lt. Malcolm get the radio report that Overkill has been located, they are sitting in a black 1970 Dodge Coronet 4 door. Just before they arrive at the scene we see a black 1965 Plymouth Belvedere but when they arrive they are in the Coronet.
During the chase through the Japanese Village, the use of stunt double Charlie Picerni for Joe Mannix is evident shortly before Mannix runs across the red arched bridge.
Just past the 46:00 minute mark Mannix is being chased by bad guys in the Japanese Village. While shooting at Mannix, one of the shots hit a green Japanese statue. When the plaster falls away the special effect wires and spent squibs are clearly visible dangling from the statue.