"The driver of the vehicle has been identified and located and is assisting with police with enquiries, and over the past few days the investigation have followed several lines of enquiry.
"The unidentified victim is believed to have been crossing Great North Rd in Avondale, between the Mobil Service Station and Larch Street. The Suzuki was driving in the right-hand east bound lane, and has struck the pedestrian."
The woman is believed to have hit the bonnet and the windscreen, and was then left lying on the side of the road. The driver left the scene shortly afterwards, and police believe the victim "has, at the very least, sustained a head wound".
"While we can reassure the public that we have identified the driver and are speaking with him, we desperately need to identify and speak with the victim here," Mr Blackman said.
"We've checked with all of the hospitals and are making other enquiries, however at this point we still don't know who this person is.
"The information we have is that the victim is possibly a young, dark-skinned woman with long dark hair.
"There could be any number of reasons as to why that person hasn't come forward or sought medical help, but we'd encourage them to make contact with us as soon as possible, or tell an adult or friend about what has happened."
The driver of the vehicle was a young man, Mr Blackman said.
Anyone with information is asked to contact Auckland City Police on 09 302 6641 or Mr Blackman on 09 213 7926.
