The all-female W Series championship has grown exponentially since its introduction in 2019 and this year, all 10 rounds of the series are live on Sky Sports, starting this weekend with two races in Miami.

Sharing on-track duties with Formula 1 on the all-new Miami Gardens street circuit, qualifying takes place at 2pm on Saturday before Race One at 7.10pm, while Race Two is on Sunday at 3.20pm.

• Welcome to Miami! F1 and W Series schedule on Sky Sports

Eighteen talented drivers from all over the globe will be bidding for the title this year and identical F3 cars give them an equal chance to shine - although there is little doubt who has a target on their back for 2022.

Chadwick, the Williams development driver who enjoyed a dazzling junior career coming into W Series, has won both titles so far (2019 and '21 with '20 cancelled due to the pandemic) and is bidding for the hat-trick.

She is, however, braced for a close battle this year - both from new drivers and her rivals from last year, fellow Brit Alice Powell and Finland's Emma Kimilainen.

"I can imagine Alice and Emma will definitely be up there," Chadwick tells Sky Sports. "But I would expect there to be a few new faces in the mix as well.

"Teams are getting more competitive and the drivers are getting more competitive so I think it's going to be a closely fought season throughout and there will be more contenders this year.

"You don't know what's going to happen, I could DNF the first race and be in no contention.... but the ultimate goal is exactly the same. If I focus on myself, that can happen again."

W Series: The Class of '22 as Chadwick defends crown

W Series' Class of '22 includes five new drivers as the series takes another step in competitiveness, bringing in more drivers who have impressed in other categories against men, just as Chadwick has.

"I'm tantalised by the prospect of our new drivers," says Catherine Bond Muir, W Series' founder. "There's Juju Noda who's a very famous young driver and great hope for Japan, and also we've got the super-fast Bianca Bustamante from the Philippines and Chloe Chambers from the United States.

"Those three drivers, I'm not sure how quick they will be to begin with because there are a lot of drivers who have had two years' experience driving our cars, but my prediction is those drivers are just going to get faster and faster throughout the season, and getting closer to the podium.

"There will also be the traditional fight between Jamie, Alice and Emma, so there will be two parallel stories of the old ones fighting it out like they've always done, then the new bucks coming underneath."

Caitlyn Jenner 'a great addition' as team owner

Another new addition to 2022 is Caitlyn Jenner, with the former Olympic gold medal winner and transgender activist having founded her own team - Jenner Racing - who Chadwick will drive for.

Jenner, the media personality who is also a former professional racing driver, is passionate about women's sport and has been heavily engaged since her W Series involvement was confirmed.

"I've been out to the States to visit her which is great, to get on a similar wavelength with her and understand what she wants for the team," explains Chadwick. "It's a whole new opportunity, very different to anything I've ever experienced before.

"Every team owner wants to win this year, she's a former sportsperson so she understands the competition which is important, and going forwards she just wants to grow women's sport. Using W Series as a platform to do that is great - she's proactive in pushing that."

Muir adds: "Caitlyn has two great passions in life now; promoting women and motorsport.

"I never had any idea she was a professional motor racing driver herself. She's a great character and believes in the promotion of women so I think she'll be a great addition to this year."

A driver in F1? What is the ultimate W Series goal?

While W Series has proved a popular and much-needed series in the motorsport landscape, Muir is open to admitting that she wants to see drivers graduate and move on to compete against men in series such as F3 and F2. The ultimate goal, understandably, is seeing a female compete in F1 for the first time since 1992.

Chadwick may well have the best chance of doing that, having earned a place in the Williams Junior Academy as a simulator driver. But even despite her accolades, she couldn't get on the F3 grid for 2022 due to the budget difficulties and so returned to W Series.

"I know she's been well criticised for not going off to F3 and F2 but I think the fact that Jamie couldn't get a seat in time for testing for F3 and F2 demonstrates how hard the sport is," says Muir. "It's incredibly hard for even the boys and the men, but it's especially hard for the women.

"I feel like the mother to these drivers and you have mixed feelings when they leave, because it's like seeing a child off to university. I do want her to go off to F3 or F2, but I'm delighted she's having a Gap Year and spending it with me.

"I think she'll make it, she just needed more time to plan."

Chadwick, rather than being dismayed, is grateful she has the W Series opportunity.

"There are a lot of male drivers who are jealous of the opportunity we have," she insists.

"For sure, without it, I wouldn't be racing. To have this opportunity to continue racing on such a high level on the Formula 1 package, to generate the profile the series has given me, to be able to go on to a team like Williams, are definitely things I would never have expected ahead of the first series."

What will help W Series in its goal to make motorsport more diverse is making an impact at grassroots, with karting predominantly male-dominated. Through just two seasons so far, it seems to be working.

"I speak to a lot of girls at karting paddocks coming through and a lot of them do see W Series as where they want to go in the next few years," explains Chadwick. "If you're a karter trying to get to Formula 1, or trying to get a professional seat... the amount of investment to get to that level is huge."

Muir continues: "We are already getting reports from kart tracks across the world that more female drivers, more girls are getting into karting.

"In the UK, they are putting it down to W Series."