When on scene at the burglary, there is a GMC pickup in the driveway. The "M" in the GMC is covered with masking tape probably due to the fact that GMC didn't authorize the vehicle to be shown and that Chrysler provided cars for the show.
The 1968 gold with white vinyl top Mustang 'studio' car is seen again. This time it's outside the apartment complex when the guys are searching for Barstow, the abusive husband.