Brazilian surgeon Marco Filho, adjusting his belt after leaving the Hamilton courthouse on Friday, was charged with dangerous driving after clocking 202kmh on the Waikato Expressway.

Honeymoons don't get much racier than this.

A 28-year-old Brazilian man at the beginning of his honeymoon was clocked hurtling along the Waikato Expressway at 202kmh in a rented Mercedes GLC on Friday morning.

Due to the excessive speed, cardiologist Marco Filho​ was arrested on the spot.

CHRISTEL YARDLEY/STUFF Marco Filho's wife was outside the Hamilton District Court.

He pled guilty to one charge of dangerous driving at the Hamilton District Court on Friday and was convicted and fined $1100, and ordered to pay court costs of $130.

Filho​ was upset when talking to a Stuff reporter outside court.

He said he didn't realise he was driving that fast - until he looked at the speedometer.

"I was talking to my wife, enjoying the view. It was very nice. It's the first time I've driven a Mercedes.

"When my eyes looked down and I saw the 200km [on the speedometer], I thought, whoa, that's fast. I slowed down, and then I entered the 70[kmh] zone.

"That's when the officer saw me. It was my mistake."

He was, however, not impressed with being placed in a holding cell before his court appearance.

He thought it was "unnecessary", as he is a "good citizen".

"I was really scared. I am not a felon or a murderer.

"In Brazil, you speed and you pay the fine. There was no harm and no one else was on the road."

Filho was pulled over by police around 8am while travelling south between Taupiri and Hamilton.

It was disturbing he was driving that fast in very poor weather, Waikato road police Senior Sergeant Pete van de Wetering said.

"It's one of those surprising occasions where you scratch your head and wonder why it had to happen at all.

"It's certainly a case of ignorance. Whether it was a case of arrogance as well, I don't know. Whatever the excuse, it doesn't cut it."

Filho said he hired a "nice" car as a treat on he and his wife's honeymoon.

The pair were on their way to the Waitomo Caves and planned to spend a week in New Zealand.

"I've never driven that fast. My car is very weak, so [driving] 100 kilometres, it would tremble.

"With the Mercedes, I thought I would be going 140, 130. I made a very serious mistake."

His lawyer, Louis Wilkins, said Filho was "about as remorseful and regretful as a person could be".

"He made a significant error and is extremely apologetic."

Community magistrate Ngaire Mascelle said it was fortunate no one was harmed by his actions.

"It could have been quite catastrophic. We have roadworks all over the place and at that speed, there's no room for error, especially if you had to stop suddenly."

Filho said in Brazil, there are many fast-driving highways.

"You are able to go fast between cities, exactly like this one. So of course, I have to know that I'm not in my country.

"I was distracted for, like,10 seconds."

The Mercedes car hire company instantly cancelled Filho's contract and towed the car to Hamilton Airport.

Filho was disqualified from driving for six months and said his wife would have to drive for the remainder of the trip.

"I really can't think now. It's kind of ruined our trip," Filho said.

"My only wish now is to return to Brazil. But I will talk to her."