Five Ivory Park would-be hijackers got more than they bargained for when they allegedly tried to rob a man of his car, North Rand police said on Tuesday.

Superintendent Eugene Opperman said one of the five robbers had a pistol and instructed the driver to get out of his car on Sunday evening.

The 35-year-old man took his car keys, got out of his car and was able to push two of the four men away.

"He then ran towards the hijacker's car where he pulled out the driver and drove away to the Ivory Park police station and reported the matter," said Opperman.

After a short while, one of the five who had allegedly tried to hijack the man came to the police station to report his car stolen.

"By coincidence, a woman who was reporting a case of rape recognised the robber who had raped her earlier on Sunday," Opperman said.

The man was arrested at the scene while his four accomplices were arrested shortly afterwards. The five were charged with attempted armed robbery and rape and would appear in Kempton park's magistrate's court on Tuesday.