Hamilton spoke to reporters at the Losail International Circuit ahead of this weekend's Qatar Grand Prix and believes it presents opportunities for the sport to increase its overall diversity and, pivotally, increased the chances of having a woman join the grid.
"I think it's great. I think, Formula 1, I've always felt that there weren't enough cars on the grid," Hamilton said. "There'll definitely be people that won't be happy for me to be so supportive of it, but I think it's great.
"I think F1, at the moment, the business is on fire," Stroll said, earlier this week. "The sport has never been in a better place, and I believe if it isn't broken, you don't need to fix it."
"So, I'm a strong believer that it's working really well with 10 teams right now, and believe that's the way it should stay.
"There's never been more fans, spectators at races, the audience is the highest it's ever been, I continue to see substantial growth, particularly in the United States, which is the largest consumer market in the world.
"As you know, we now have three races in the States - we're in our second year in Miami, we're going to Las Vegas in November. So, I see tremendous growth possibilities going forward."
Verstappen: In terms of competition it would be nice
2023 world champion-in-waiting Max Verstappen would like to see more cars on the grid too and endorsed the Andretti name as carrying weight should the big get rubber-stamped.
The Dutchman, though, was keen to defer to F1 to make the decision with the sport now set to conduct its "own assessment of the merits of the remaining application", per a statement released following the news of the FIA's approval.
"That's why it's very hard to understand, from what I've seen and heard it looks very professional and they want to come in and of course with the Andretti name they are a big name.
"They already have achieved a lot in motorsport so I would definitely like to see them here but it's not up to me to decide these kind of things. It's the FIA, the teams, F1 altogether they have to make that call. They know the situation best and they will make the decisions."
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