Melbourne Highway Patrol officers are investigating a collision in Port Melbourne earlier this week.
Emergency services were called to reports a Volkswagen Golf and BMW X1 had collided on the West Gate Freeway in bound about 8.40pm on Wednesday 19 November.
It is understood the Volkswagen and several other modified vehicles, including a black BMW 320i and a second Volkswagen Golf, were seen street racing moments before the collision.
The vehicles involved were heavily modified and investigators believe the probationary drivers of these vehicles were driving them in breach of their license conditions.
The driver and sole occupant of the BMW X1, a 41-year-old Cairnlea woman, was transported to hospital with non-life-threatening injuries.
The driver of the Volkswagen Golf, a 20-year-old Hoppers Crossing man, was not injured.
Some of the drivers of the other modified vehicles failed to stop at the scene and render assistance.
The investigation into the circumstances of the incident remains ongoing.
Anyone who witnessed the collision, has dashcam or CCTV footage of the vehicles involved, or anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit an online confidential report at www.crimestoppersvic.com.au.
