Prominent banker Guy Hallwright has been found guilty of injuring another driver in a road rage attack in Auckland.

A jury at the Auckland District Court today found Hallwright, 60, guilty of causing grievous bodily harm with reckless disregard to Song-jin Kim, 58, on Mt Eden Road on September 8, 2010.

Judge Raoul Neave discharged a more serious charge of causing grievous bodily harm with intent to injure.

Earlier in the trial Kim had claimed he had not tooted at Hallwright at traffic lights and that Hallwright gave him the fingers and swore at him.

Kim said he had gone to Hallwright's car.

He said he had varicose veins and as he moved back to Hallwright's car, he began to fall, demonstrating to the court how he splayed out with his hands across the bonnet of Hallwright's car.

"At that time it wasn't moving, but as I tried to get up, holding something, tried to stand up, and then he just drove off."

Kim told the court he has had eight rounds of surgery on his broken legs and was due for another one next week.

Hallwright denied deliberately driving into Kim and said he was afraid he might have had gangster connections and a weapon when the two of them confronted each other.

"I became very alarmed, there was a look on his face that really chilled me," Hallwright told the court yesterday.

"He had his teeth clenched, and he was staring malevolently at me.... I became very afraid at that point."

He and his daughter, Isabel Hallwright, 18, who was in the car at the time, both described feeling a "small bump" when they went over Kim.

Hallwright was defended by Paul Davison, QC who, yesterday, scored a major legal victory for another of his clients, Kim Dotcom.

Hallwright was released on bail and will be sentenced later. He faces a maximum penalty of five years imprisonment.

- © Fairfax NZ News