A police probe by the Forensic Crash Unit is continuing into the incident with a renewed call for anyone who either saw the vehicle travelling in the area prior to the crash or was driving in the area and has dashcam footage.
Constable Stephanie Young said the car - a white Nissan Navara - was believed to have been driving north on Kamerunga Road before turning right onto Lower Freshwater Road.
The vehicle is alleged to have struck Mr Mills a short distance down the road.
The 35-year-old driver has undergone mandatory blood testing and police are awaiting the results. Anyone with information should contact police.