''Unfortunately, Trudi Ruffiner, who was still clinging on to the roof, fell from the car, hit the road and lost her life as a result,'' Judge Shortland said.
Takimoana said he didn't know Ruffiner was still on the roof, and only found out later that she had died.
The court accepted Takimoana was tired and didn't want to fight, but he had made the ''unfortunate choice'' of driving away.
''...At no time did you consider or turn your mind to the fact that you should have stopped and checked, just in case. You decided to continue on. This all happened in the space of a few minutes.''
Judge Shortland said he regarded Takimoana's actions as reckless rather than dangerous, but dangerous driving causing death was the charge he had faced.
He set a starting point of four years' jail, given aggravating features such as the loss of traction as he left the car park, failing to stop and check, the fact he was a disqualified driver, and the loss to both whānau. That was reduced to two years and two months for genuine remorse - the judge described him as ''grief-stricken'' - and the fact that he had been on restrictive bail conditions for most of last year.
He had also pleaded guilty at the first opportunity, against his lawyer's advice.
Takimoana was also disqualified from driving for a further two years and six months.
Judge Shortland said not only had Takimoana lost a partner, but a whānau had lost a mother, a sister and a loved one.
''Hopefully, somewhere along the line you will be able to find some peace in yourself,'' he said.