Ministerial cars clocked up nearly $40,000 in repairs last year - $19,928 for self-drive cars and $19,391 for the fleet of limos.
A Department of Internal Affairs spokesman said most of the cost for the 17 self-drive cars was for normal wear and tear, the Dominion Post reported.
"More oftenthan not, this is an accumulation of small parking scrapes and scuffs to paintwork not attributable to a single accident," the spokesman said.
However, the cars allocated to Justice Minister Simon Power and Maori Affairs Minister Pita Sharples were involved in accidents. Both have $889 insurance excess costs recorded against them.
A spokesman for Mr Power said the damage to his Holden Captiva occurred when his wife pulled over to make room for a car coming the other way on a narrow road. Spouses are permitted to use the cars.
Dr Sharples' office did not respond to requests for information.
Six chauffeur-driven cars were involved in accidents.
