A remarkable derby even by Manchester standards ended with City celebrating one of the biggest wins in the fixture's history and the humiliated ten-man Reds nursing their wounded pride.
City's joyous six-hit surpassed even the 5-1 triumph of 1989 to leave Roberto Mancini's rampant team five points clear at the top of the Barclays Premier League on an extraordinary afternoon.
United had never conceded so many at home in the competition, and it was hard not to see this as a watershed moment in the wavering balance of power at the pinnacle of the English game.
Mario Balotelli's double seemed to stun the champions, who tumbled to their first home defeat in 18 months as Sergio Aguero ensured victory with his tenth goal in nine games for City before Edin Dzeko (two) and David Silva piled on the agony.Read full match report
Barclays Premier League
As of: 23 October 2011, 4:10 PMView full league table
- Duration: 94 minutes
- Home possession: 49%
- Away possession: 51%
- Home: 4
- Away: 7
- Home: 15
- Away: 12
- Home: 1
- Away: 1