Roberto Mancini has managed to inject City with the same streak that has made United so hard to beat down the years.
"They are playing similarly to last year," said Ferguson.
"Early season last year they did very well. But as the season progressed they were in the same place they are now.
"They are still scoring late goals, which is a strong trait if you are going to win a championship.
"It shows you that they are not going to give in.
"They are dangerous in the last few minutes of matches, especially Edin Dzeko, when they bring him on, so they have certain traits that are easily identifiable."