"If we are going to compare November, December, January, comparing the position, we are going to lose all the comparisons with what we have done last season".
"They are contenders to win the title, Liverpool are always a contender because of the history they have".
They have also added Naby Keita and Fabinho to the midfield and boosted their attacking options with the signing of Swiss winger Xherdan Shaqiri.
The Liverpool manager has said he wanted to build a successful side in a different way but Guardiola defended the German's change in strategy.
"Every club, do what they believe, and I understand it", he told a news conference on Tuesday.
"I need to go somewhere permanent, I think that's obvious", said Hart, who missed out on selection for England's World Cup squad. When Liverpool spend this money it is because they believe it is best for them.
"I am not going to judge what the others are doing". In the holding midfield position we don't have less players because Fernandinho is still there one more year, [Ilkay] Gundogan can play there, Fabian Delph can play there. If they think it's best for them, that's ideal for them. Last season we increased the levels of the Premier League.
"All the contenders will be stronger".
Some of you play better when you are angry with me.
"Always at the beginning of the season the expectation of every team is high. Nobody knows what will happen this season, nobody".
Riyad Mahrez showed off his exquisite individual ball skills that convinced City to pay Leicester City a club-record £60 million for him, Leroy Sane was sharp and unsafe with a point to prove after his shock omission from Germany's World Cup squad, while youngster Phil Foden displayed the touch and vision that has seen pundits describe him as a potential England player despite only turning 18 in May.
"His target is to play as many minutes with us, and the national team is a effect of that", he said. To have him with us, it's great.
"Maybe one will come, maybe not, we'll see, but at the moment we have a good enough squad".