Police want to speak to any witnesses in the area at the time who may have seen the crash and the northbound black Mitsubishi Libero before the crash. They would also like to speak to the driver of a late-model light blue Volkswagen car.
The death brings Northland's 2013 road toll to 14.
RoadSafety spokeswoman Gillian Archer said speeding drivers in built up areas was a serious issue and put vulnerable people such as children and pedestrians at risk.
"People have to realise the speed limits are there for a purpose and that's to keep the community safe. Taking the weight off the accelerator could mean the difference between life and death."
Mrs Archer appealed to drivers to slow down and bide by the posted speed limits.
"Even if a crash is not avoidable it will be survivable. This is about people driving at survivable speeds."
A neighbour on Western Hills Drive said she was not surprised there had been a fatal crash and described the short section of road where the fatality occurred as "dangerous".
There was a right-of-way where many children live, they were forced to cross the road with little visibility as traffic came up over the brow of the hill.
Anyone with information about yesterday's crash can contact Whangarei Police on 09 430 4525 or Crimestoppers, anonymously, on 0800 555 111.