Judge Robert Wolff said Courtney had not stopped when he should have and sped through three sets of red lights before being caught by off-duty police officers at a petrol station.
Miss Hunter and her boyfriend's brother, who was not named, were taken to Tauranga Hospital.
Ms Hunter told the Bay of Plenty Times she had been making jibes at Courtney because he was with another man inside the car while making a woman push from behind.
"Who wouldn't laugh at two men sitting in a little car and making their missus or a woman push them?"
She was struck, hit the windscreen of the car and was then thrown off. She needed surgery to her knee and also suffered significant emotional harm, the court heard.
Miss Hunter still had crutches with her in court yesterday.
Judge Wolff said Miss Hunter had suffered significant harm that would normally require some form of reparation, particularly as she had not been able to work since, but Courtney could not afford to pay.