"The gorge from Tauranga to Rotorua is really dangerous, especially in that portion. You can't drive like that."
Going by the look of the vehicle he doubted that it would be tourists behind the wheel.
He said they continued to see the car in the distance for a short period which showed the driver continuing to cut the corners.
"He just didn't go over [yellow lines] once, he was doing it over and over."
He said the incident occurred on March 15 about 5pm.
He shared the video as he had been monitoring the road toll in the media and said driving like this didn't help keep people safe.
"The death toll on our roads is spiking, so that's really terrible. Just imagine if a car just came out in front of it, what would happen? An accident."
The 27-year-old labelled the driving the worst he had ever seen.
"I'm used to watching this, but that was just terrible ... one of the worst, I think most worst."
The Herald is seeking comment from police.