A 25-year-old woman claiming to be on her way to get tested for COVID-19 allegedly spat at police while resisting arrest after a car chase through south-west Sydney last night.

Police in Greenacre attempted to stop an Audi on Greenacre Rd just after 5pm on Friday. As police did a U-turn, the Audi allegedly accelerated away, travelling at no less than 120km/h in a 50km/h zone.

The Audi was allegedly seen disobeying a red light at the intersection of Mimosa Rd before crossing unbroken lines to overtake a vehicle and turn right into Macquarie St. After allegedly failing to stop at a stop sign, the Audi turned right into Roberts Rd and stopped in heavy traffic.

An officer, who had been following the Audi, approached the vehicle and spoke to the driver, a 25-year-old woman, who was placed under arrest; however, she refused to get out of the vehicle.