"At that point, I was pretty convinced that as an Italian team...I'd always felt comfortable with Toro Rosso, and I always felt like Ferrari could be a good place for me.
"I know Italian, I know some people there, and I felt like I could have a successful time there immediately.
"Apart from that, I think sentimentally, driving for the most successful team in the history of the sport is always the dream of any Formula 1 driver."
Sainz joins Ferrari on the back of the worst season for the Scuderia since 1980, with the performance differential between the team and its rivals only masked by some stellar performances by new team-mate Charles Leclerc.
Despite this, many will see the move as a step up for the Spaniard. When asked if he was prepared for the switch, he replied: "Yeah, of course.
"I feel ready for whatever comes. I've always said my ultimate goal in Formula 1 is to try to be world champion one day, and I'm ready to take that next step into Ferrari and see how it goes. I feel 100% ready."
GPFans is a multi-platform, multi-language brand dedicated to Formula One coverage. We bring you all the ins and outs of the sport, 24/7, everything from up-to-the-minute news and features to the latest viral stories and clips.
We believe that a new generation of exciting, outspoken drivers will make F1 more popular than ever before, and we want to give our users access to as much of their heroes as possible, on and off the track. From Lewis Hamilton to Max Verstappen, Daniel Ricciardo to Sebastian Vettel, we provide in-depth analysis of every every Grand Prix in the season, from Australia to Abu Dhabi.
With Formula One under the new ownership of Liberty Media, how the sport is being covered is evolving, and GPFans will look to be at the heart of this progression into new media, as one of the fastest-growing sites covering the king of motorsports.