Its pretty obvious these guys [Team New Zealand] are faster and we need to make some serious changes..
Although they've won four races, the Kiwis lead Oracle 3-0.
During Race Four there was a moment of tension when it looked as though Team NZ might collide with Oracle.
Perhaps the unexpected strength today was the superb starting by Emirates Team New Zealand twice getting the better of rival Jimmy Spithill.
Well-funded Oracle Team USA Ellison is worth an estimated $55 billion has five days to come up with some answers to try to counter the spot-on design innovations by the scrappy, underfunded Kiwis, who almost folded after their epic collapse in the 2013 Americas Cup on San Francisco Bay.
"We've made it no secret we're here to try to win the America's Cup", said the 26-year-old Burling.
"We've been here before, it's not over", he said.
With the pressure now off, Burling guided his team around the sixth and final gate and coasted to the finish line an entire minute and 28 seconds ahead of Jimmy Spithill's ORACLE TEAM USA, taking not only their second successive win of day one, but also moving into a one point advantage in the battle for the "Auld Mug".
New Zealand are trying to expunge the bitter memory of 2013, when they led the United States 8-1 only to fall 9-8 as Oracle mounted one of the great comebacks in sports history in San Francisco.More news: Halep misses another chance to win Grand Slam title
"We were far from our best today. we need to sharpen up and that's what we'll focus on tonight, Oracle skipper Jimmy Spithill told a news conference".
"The boat's going really fast and the boys are doing a really good job just to get around the track nice and smooth", he said.
"It was fantastic to win both starts, I'm really happy for the guys", New Zealand skipper Glenn Ashby said.
But Spithill insisted there was still room to make useful adjustments to the complicated systems that control the space-age craft, and to "appendages" including the massive fixed-wing sails, rudders and the daggerboards that allow the boats to foil - virtually flying with their twin hulls above the water surface.
As for Oracle's foil selection, "I thought we made a good step forward", Spithill said.
The kiwi on a bike is a reference to Team New Zealand's innovative grinding system in which it has replaced traditional coffee-grinder winches with stationary bikes to tap the grinders' leg power instead of arm power. We are dying to know.
For race two Emirates Team New Zealand again led around mark one.
The duo claimed 49er Olympic gold in Rio de Janeiro last year in dominant fashion, clinching victory with two races to spare and winning by the most points of any sailing class in the Games in more than 50 years. Coutts successfully defended the Americas Cup in 2000 before jumping to Swiss startup syndicate Alinghi of Switzerland and sweeping his former team in 2003.