Man City heads to Monaco on Wednesday with a 5-3 advantage from a topsy-turvy first-leg, knowing that a good performance should get them through to the UCL quarterfinals.
From there, history could be made, and Toure says that Guardiola has enough talent in the squad at his disposal to achieve something special.
“I think this could be Pep’s biggest achievement,” Toure told British newspapers. “It is his biggest test. But this guy likes challenges — and so do the players. So it is good.
“This team is so young. We already had good players, but now Pep brings in young players and that is so demanding for him.
“But it is starting to feel like something big is happening at City. The fans feel it, everyone feels it.
“We are getting a winning mentality in Europe and playing very well.
“When we play like we did against Monaco, we come close to the great teams like Real Madrid, Barcelona and Bayern. We cannot dream about anything yet because we still have a second leg to play.
“But if you ask the fans, they believe it. You saw their reaction against Monaco.”
Guardiola also has a chance to win silverware in the FA Cup after his team qualified for the semifinals on Saturday with a 2-0 win at Middlesbrough.
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