Ms Sandilands said the elderly couple then took a wrong turn and were doubling back when the Landcruiser came round the corner on the wrong side of the road and clipped the rear of their rental vehicle.
The male driver of the damaged rental car then started to take pictures of the damage but the male driver of the Landcruiser allegedly tried to rip the camera out of his hands.
The woman then grabbed the camera and threw it onto the road and allegedly punched the elderly man in the chest twice.
The Christchurch couple managed to get the number of the Landcruiser, which was registered to a Whangarei couple.
Police have charged a man with two counts of assault and a woman with assault.