A Johannesburg man who owns a high-performance sports car told Eyewitness News on Monday that police officers often pulled him over and offered to "cover up" for him in exchange for high-speed joyrides.

The businessman said he was used to the harassment by police officers, but refused to drive them anywhere.

"It's been happening to me about three to four times a month. I have friends who also drive high-performance cars and it also happens to them frequently," he said.

He added that it was not unusual for officers to ask him to break the law.

"They're quite happy to have you push the car... as hard as it can go."

The man also said that it was common to have the officers ask owners of luxury vehicles to give them rides in exchange for the police "forgetting" about their misdemeanours.

The man said he would like these policemen to be prosecuted.

This comes after Audi R8 driver Areff Haffejee and police officer Goodman Lubisi were killed when the former's car hit a tree, wall and light-pole on Oxford Road near Rosebank during the early hours of Thursday morning.

Haffejee's family has since hired a private investigator to look into the fatal crash, after a witness disputed the official police statement on the incident.