Deposed as Premier League champions, but Pep Guardiola’s look hungry for a cup treble.
Raheem Sterling’s goal finished off Newcastle and set up an FA Cup semi-final tie against Arsenal.
The hurt felt by seeing rivals Liverpool lauded as the best in the land this week was channelled into an utterly dominant demolition of Steve Bruce’s side.
Birthday boy Kevin De Bruyne opened the scoring at the end of a first half in which Newcastle were hardly given a kick, such was City’s persistent, ball-hogging brilliance.
They are chasing a seventh FA Cup, to add to the Carabao Cup they’ve already banked this season, plus a Champions League quarter final against Real Madrid is on the horizon in August.
With Liverpool’s celebrations still echoing, there was no sulking from City.
They were so efficient it was an insult to call this a contest, launching a relentless assault on Newcastle’s goal from the off.
By the time Kevin De Bruyne netted the penalty kick opener in the 36 minute they’d had an astonishing 86 percent of possession.
Recalled centre back Fabian Schar shoved Gabriel Jesus needlessly as a cross was floated over by Kyle Walker.
Ref Lee Mason awarded the spot kick and De Bruyne stroked home for his 15 of the season, on his 29 birthday.
“We should have scored more,” De Bruyne said. “We had a few problems with penalties this year. The gaffer asked me to step up and I have scored a couple now.”
There were two different versions of football on display. City relentless pressing forward, devouring the ball. They were frighteningly tenacious and snappy winning it back.
Sterling made the win certain notching the second after 68 minutes after a ruthless two pass, 90 yard move.
Aymeric Laporte pinged a 50 yard cross field pass to sub Phil Foden, who collected it brilliantly and burst forward to release Sterling.
The England winger stepped in from the left and curled a superb 25 yard shot past Karl Darlow.
A minute earlier United sub Dwight Gayle blew a simple chance to undeservedly level the game. Allan Saint-Maximin gave him a tap in from six yards out but he put it over.
Bruce’s side had to ride their luck to keep to score down. Andy Carroll mustered their only shot on target, and that dribbled into Bravo’s arms, and their miserable record of not reaching a semi final since 2005 will remain.
Gabriel Jesus, Riyad Mahrez, and Sterling (twice) went close in the first half alone. After the break City finished strongly and could have had four or five.
Bruce’s tactical switch, going five at the back, failed and they were slightly brighter after the break.
He said: “Who knows if we’d equalised with that chance. We had to be more aggressive and better with the ball. For long periods it didn’t feel like a cup tie.
“We are frustrated and disappointed. First half we were too sterile and passive. This is a very good Man City team.
“The four big guns are left in the competition. The gap between the top and the bottom is growing. The big clubs go on and win it.”