Prahran Highway Patrol are appealing for witnesses following a critical injury collision in Malvern yesterday morning
The collision occurred on Tooronga Road, between Viva and Young streets, on 19 January just after 9.30am.
It is believed the driver of a Ford Fiesta was attempting an illegal U-turn when they collided with an Audi, travelling north on Tooronga Road.
The 84-year-old driver of the Ford was trapped in the damaged car and had to be cut from the vehicle.
She was transported to hospital with life-threatening injuries.
The 44-year-old male driver of the Audi, who is currently disqualified from holding a licence - was taken to hospital to be checked over.
Officers are appealing for anyone who may have witnessed the collision or motorists in the area at the time with dashcam in their vehicles to come forward.
The investigation remains ongoing.
Anyone who witnessed the incident, or with dashcam footage is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au
