Porirua mayor Mike Tana told Stuff the incident was "horrific", not just for the people involved but also their families and the wider community.
"We don't want to lose anyone from our city, especially our young people and our thoughts and hearts go out to them."
The car carrying Patmore had earlier been spotted speeding north on State Highway 1, near the Terrace tunnel entrance, shortly before 3am, Superintendent Sam Hoyle said.
The vehicle had been reported stolen from Petone the night before.
The officer gave chase when the car failed to stop, but it crashed on SH1 south of the Tawa off-ramp.
Five passengers were taken to Wellington Hospital with minor injuries.
Hoyle said it was after the crash that the pursuing officer learnt there had been six people in the car, including one in the boot.
"This is an incredibly sad time for the family of the teen who died, and May 19 will never have the same meaning for them again," he said.
"Police are with the family today and will continue to provide support."
There will be a Serious Crash Unit investigation and internal police investigation into the incident, while the Independent Police Conduct Authority has been notified.
Hoyle said officers and staff at communication centres constantly made risk assessments when involved in pursuits.
"The motivations for fleeing are many and varied and it's hard at times to understand the mentality of fleeing drivers — we just wish they would pull over," he said.
It follows the death of innocent motorist and Nelson mum Carmen Yanko, 53, in March when her car was hit head-on by another vehicle driving on the wrong side of the road as it fled from police.
The second car was carrying two men, who also died in the collision.
Yanko's death brought about an outpouring of grief and led Automobile Association motoring affairs general manager Mike Noon to say banning pursuits was "something we should look at and see how it is working in other conditions".
On average, about 10 drivers flee police every day. Between October 2016 and September last year, seven deaths and 552 crashes were recorded.
Police pursuits have been banned in some Australian states and American jurisdictions.
Mr Noon called for New Zealand to study results from Queensland where state police are not allowed to chase a vehicle unless the driver was involved in murder or posed an imminent threat to someone's life.
By contrast, New Zealand police are allowed to use their judgment when a driver fails to stop and tries to elude them.
They are supposed to give up the chase if it becomes dangerous.
Two more people also died on New Zealand roads last night - a teenager on a bicycle in Auckland, and a person in a single-car crash in Canterbury.
