Mother and daughter killed in horror crash with Porsche in Melbourne's west

A mother and daughter have been killed in a horror crash in Melbourne’s west after their car was struck by a Porsche.

Security vision obtained by 7NEWS shows the moment the driver of the Porsche Macan travelled along Boardwalk Boulevard in Point Cook on Wednesday night.

A short time later, emergency services were called to the intersection at Boardwalk Boulevard and Innessfail Drive about 9.40pm to following reports of a collision between the Porsche and a Toyota Corolloa.

The 33-year-old female driver of the Toyota and her 67-year-old female passenger died at the scene.

The stretch of road is a 60km/h zone with police now investigating what speed the Porsche was travelling at when the collision occurred.

Residents who live nearby told 7NEWS they rushed to help the victims in the Toyota, but their injuries were so severe nothing could be done to save them.

“I heard a big, loud noise of an impact, and immediately I just ran outside and saw a Porsche colliding into an orange Toyota Corolla,” one witness said.

“As soon as I saw the driver from the Porsche came outside and laid on his back. I called ambulance, fire and police.”

He remained in hospital on Thursday afternoon with minor injuries but is not under police guard.