They say the turbocharged cars were clocked hurtling across the bridge at more than 160 km/h in a 60 km/h zone, before one was stopped on the nearby Western Distributor.

Police collect evidence. Picture: Steve Tyson About 15 minutes later the Porsche clipped a Mitsubishi Outlander, lost control and crashed into a guard rail on the Anzac Bridge.

Traffic is heavy in both directions after the crash, after two of three southbound lanes and one northbound lane were closed on the deck of the bridge near Mandalong Road. All lanes have since ...