The Formula 2 race winner has been brought in by Williams to replace Logan Sargeant for the rest of the season and he’s admitted the move was a “dream come true”.

Asked if his life has changed since the announcement, he told GP Racing magazine: “Yes it’s changed a lot!

“The day before I was driving in Formula 2. It was obviously a big step, a dream come true and I am really happy to be here.

“I am enjoying the opportunity.

“I knew it was going to be tough, but we’re doing a great job as a team, building up the pace to get me through the learning process quickly. And I think we’re doing a great job.”

Franco is particularly looking forward to taking part in the Brazilian grand prix.

He said: “I’m really looking forward to going to South America, Brazil. It’s a very special place for me.

“Being from Argentina, it’s almost my home race, so I’m looking forward to it, I think the fans will be very happy and there will be a lot of them.

“It’s also a great track, very old, with nice and funny corners. So let’s see how it is there.

“It’s also a track I don’t know, so it’s a nice challenge.

“Most of the tracks I don’t know if the next few rounds. But again, it’s a very nice challenge.”