Four teenagers have allegedly robbed an expensive car at knifepoint while a passenger sat inside, threatening her with the weapon.
At about 7pm on Monday a 42-year-old man parked his BMW X1 in the carpark of a shopping centre in Wentworthville, leaving a 42-year-old woman in the passenger seat.
The group of teenagers allegedly approached the car and brandished a knife, taking the keys and driving away before the owner of the car could stop them.
Four teenagers have been arrested and charged after allegedly stealing a vehicle at knifepoint in a Wentworthville carpark (stock)
Just after midnight police received information about the stolen car's location and PolAir spotted the vehicle in Seven Hills in Sydney's north-west.
The car was monitored travelling along the M4 to North Sydney, before travelling back towards western Sydney on the M2 and M7.
The carjackers then allegedly abandoned the vehicle on Woodley Crescent in Glendenning at about 1.30am.
Police found the vehicle and brought in the Dog Unit, locating four teenagers at a home on Simms Road in Oakhurst.
A 42-year-old man parked his BMW X1 (pictured), leaving a 42-year-old woman in the vehicle who was approached and threatened by the group
Two boys aged 13, a 15-year-old boy and a 14-year-old girl were arrested and taken to Mt Druitt police station.
One of the 13-year-old boys was charged with aggravated robbery in company, police pursuit and driving recklessly.
The 15-year-old boy was charged with aggravated robbery in company and be carried in conveyance take without consent of owner.
Both will appear at a children's court on Tuesday after being refused bail.
The only female was charged with be carried in conveyance taken without consent of owner was handed conditional bail and will appear at a children's court on October 6.
The other 13-year-old boy was charged with be carried in conveyance taken without consent of owner, given conditional bail and will appear at a children's court on November 3.