The frontage of a Pt Chevalier dairy was almost completely taken out last night after a vehicle smashed straight into it.
A local resident said he saw the people-mover and a pursuing police car hurtle by his house at "crazy" speeds and then heard a loud smash.
Just after 9pm, firefighters cut a woman out of the wreckage.
The woman, the sole occupant of the vehicle, was taken to Auckland City Hospital in a critical condition, St John Ambulance spokesman Norman Ngatai said.
The owners of Point Superette on the corner of Pt Chevalier Rd and Raymond St - which leads to the local sailing club - surveyed the damage to their shop as about 100 bystanders watched police, fire and ambulance crews work at the scene.