"It can't have been on fire for long, it looked to have started near the front and made its way backwards in the vehicle, but there were no fire trucks there. It was an impressive sight."
A police spokeswoman said they were alerted and responded.
One fire engine arrived on the scene before 8.30am and the fire was out before 9am.
UPDATE 8:55AM Emergency services have left the site of this car fire on SH20 between Hillsborough Rd and Dominion Rd, but the left northbound lane remains BLOCKED. Contractors are on site waiting for tow to arrive. Please continue to pass with care. ^ALhttps://t.co/emSYKlB0OU
— Waka Kotahi NZTA Auckland & Northland (@WakaKotahiAkNth) January 23, 2021