A SINGLE mother of five suffered a broken leg when she was run over by her own car in a violent carjacking outside her Westminster home.

Police said the woman drove her white Toyota Hilux into her driveway and left the car door open as she went to open the garage door at about 2.30pm on Friday.

A light coloured 4WD stopped outside her house and a man exited the passenger side of the vehicle and climbed into her Hilux.

The woman struggled with the man and he reversed the vehicle fast, running over her leg before he drove off.

Neighbour Garry O’Callaghan said the woman’s 14-year-old daughter arrived home from school to find her mum being treated by paramedics on the driveway.

Her leg had been broken in two places, he said.

Camera Icon Neighbour Garry O'Callaghan, who was one of the first on the scene to help the injured woman. Credit: News Limited, Justin Benson-Cooper

“She was in diabolical pain. She had abrasions all over her arms and blood,” he said.

Upon learning the woman’s other four children were also on their way home from school, Mr O’Callaghan arranged for another neighbour to take them inside the home.

“It was frightening because it’s in broad daylight. It was just a brazen attack,” he said.

He said the woman’s handbag and house keys, which she had left in the front seat, were also taken.

The 33-year-old mum underwent surgery on Saturday.

The man is described as aged between 20 and 30 years of age, dark skinned, approximately 175cms tall with short black hair.

Anyone with any information regarding the whereabouts of the Hilux or the incident was asked to call Crime Stoppers on 1800 333 000.