The 22 year-old was introduced to an estimated 10,000 City fans at the Etihad Stadium unveiling event on Sunday afternoon after his loan spell with River Plate ended.
Álvarez is the latest Argentinian to play for City, following in the footsteps of Club legends Sergio Aguero, Carlos Tevez and Pablo Zabaleta.
He admits he spoke to Aguero, Nicolas Otamendi and Willy Caballero about the move to Manchester, but says he is keen to write his own story.
“Manchester City has a lot of history with Argentinians before but I came here to create my own history, my own path,” said Alvarez.
“In Argentina we are used to interest from Europe. It’s our dream to play there because they are the best leagues and clubs.
“City is one of the best clubs. so I was very excited (when I learned of the move). I worked very hard and I am very excited to be here now.
“I can play in different positions. In the centre or in wings. I feel comfortable playing close to the box because it helps me score goals, but I like to assist my teammates.
“I want to play and contribute. I want to win trophies, the Premier League and Champions League.
“I’m going to give my best to adapt as soon as possible and contribute and play as soon as possible.”
Alvarez joined Stefan Ortega Moreno and Erling Haaland on stage at the sun-drenched event on Sunday afternoon.
At the press conference that followed, Alvarez was asked whether he would have liked the No.9 shirt his striker partner Haaland will play in this season.
He smiled and said: “To me the number doesn’t matter. I just want to play my game and I’m not worried which number I’m wearing.
“Number 19 is the number that I like, it was the birthday of my grandmother.
“Erling is a great player, scores a lot of goals and has been an important player at his other clubs.
“I can play in the middle and on the wings, I think I can be a good player here.”
