A woman and a man travelling in a Ferrari died in a hail of bullets in Soweto on Sunday.
At least 15 shots were fired at the Ferrari.
The two, aged 21 and 41, were on the corner of Chris Hani and Klipvalley Road on Sunday at about 22:00 when a Toyota Etios blocked them, police spokesperson Lieutenant Colonel Mavela Masondo said.
Masondo said the Toyota had an unknown number of occupants, who fired several bullets at the red Ferrari before speeding off.
Both victims died at the scene.
Police were investigating two cases of murder and no arrests have been made.
"We appeal to the community to assist the police with any information that will lead to the arrest of the suspects. They can contact the Moroka police at 011 527-0000 or 08600 10111," Masondo said.
It's not yet known how the two were related as Masondo said police could not confirm if they were in a relationship.
The shooting comes two weeks after a police reservist and her boyfriend were shot dead in a Ford Mustang while driving in Soweto.