He refused and instead detained her for 15 hours at his house, where he ordered her to stay away from windows and doors and not to call the police.
It was not mentioned in court who alerted the police. Officers found the woman at the house the next day, and an ambulance was called.
She suffered numerous injuries, including a fractured clavicle and eye socket, scrapes and cuts to her head, arms, hands, legs and feet.
At Vaughn’s recent sentencing, Crown solicitor Lexie Glaser argued that he was not remorseful.
“As evidenced by his history, he has continued to illustrate a behaviour which tends to show he has a desire to terrorise and subject the victim to repeated instances of violence.
“If he were genuinely remorseful, he would have made positive change.”
She said a pre-sentence report showed he minimised his actions and blamed the victim.
“At the time of the offending, he felt like the victim was ‘manipulating and disrespecting’ him and that he did not target her with his vehicle, claiming the victim ran at his car.”
But Glaser said CCTV footage, which showed the defendant “running her down” as she had her back towards him, painted a different picture.
Glaser submitted that a 50% minimum period of imprisonment (MPI) was appropriate because of the nature of the offending and Vaughn’s history of violence.
Defence counsel Gerard Walsh submitted that his client had endured a deprived upbringing and also had a drug addiction.
Vaughn had worked on his rehabilitation by completing courses while remanded in custody, Walsh said.
“It was you who went to her house ... and rammed into her with your car.
“You have a long history of violence against her. Ten convictions.
“In traditional Māori society, we don’t treat women as our punching bags. She’s not your rehab.”
A report found Vaughn was at high risk of reoffending, particularly against those with whom he was in a relationship.
Vaughn told the report writer that, when he ran the woman down, he had gone “a number” of days without sleep because of his methamphetamine use.
He said most of his offending happened when he was coming down from his drug high, as that was when he found it difficult to manage his thoughts and feelings.
In addition to the 14 charges Vaughn faced concerning the woman, including wounding with intent to cause grievous bodily harm, kidnapping, possessing an offensive weapon, threatening to kill, and two breaches of a protection order, he also faced unrelated charges.
Those included breaching prison release conditions, dangerous driving, and failing to stop and ascertain injury.
Several charges related to Vaughn driving a stolen Lexus at speed on July 27 last year.
Police set up cordons to stop him, but he sped off, narrowly missing two officers as he travelled 100km/h in a 50km/h zone on the wrong side of Willoughby St.
His erratic driving continued until he got to the intersection of Mill and Tristram streets, where he crashed into an Audi, but did not stop to check if anyone was injured.
Vaughn continued before abandoning the car soon after the crash.