City got the better of their Premier League rivals 4-1 in the third round of the League Cup at the Stadium of Light.
Ivory Coast international midfielder Toure started the encounter and played until 89th minute, and he was delighted with the final result.
Argentina international striker Sergio Aguero also featured for City against Sunderland, and he was happy to have helped his team return to winning ways following the 2-1 defeat to West Ham United at the Etihad Stadium in the Premier League on Saturday evening.
Very good start for the Capital One and better yet to return to victory. C'mon, City!— Sergio Kun Aguero (@aguerosergiokun) September 22, 2015
City were always in control at the Stadium of Light and took the lead after just nine minutes through an Aguero penalty.
Kevin De Bruyne made it 2-0 to the Citizens in the 25th minute, before Raheem Sterling's shot hit the post, struck Sunderland goalkeeper Vito Mannone and went in on 33 minutes.
Sterling scored City’s fourth goal of the evening just three minutes later, while Sunderland pulled one back seven minutes from full time through Ola Toivonen.
Over the course of the 90 minutes, City had 56% of the possession, took 14 shots of which seven were on target, and earned two corners.