Family members said they were not expecting their father to get out of hospital any time soon.
Police would like to speak to anyone who saw a hitchhiker in the vicinity of the Gisborne Park Golf Club on Gladstone Road, Gisborne on Sunday afternoon or evening.
The hitchhiker is described as in his 30's, of solid build with short cropped hair and a Ta moko. He has a distinctive look and police believe he will have been noticed by motorists in that area
The stolen car is a white 2005 Nissan Wingroad, registration number FQL20.
People with any information on where the car is or who the hitchhiker is, are asked to call Gisborne Police on (06) 869 0200.
Alternatively, anonymous information can be reported to Crimestoppers on 0800 555 111.