Who is Carlos Sainz Jr's stunning girlfriend Rebecca Donaldson? Meet the Australian Grand Prix winner's supermodel partner

Ferrari ace Carlos Sainz Jr has endured a rollercoaster start to 2024 as the team replaced him and he needed surgery just before winning the Australian Grand Prix - but his model girlfriend Rebecca Donaldson has been there for him through it all.

The Spaniard led teammate Charles Leclerc home for a one-two finish for the Italian team in Melbourne on Sunday.

Remarkably, he did it just two weeks after being forced to miss the Saudi Arabia Grand Prix as he had surgery to remove his appendix - forcing him to take drastic steps to be fit for the race at Albert Park. 

Donaldson was first romantically linked to Sainz when they were spotted in Italy in June 2023, with the pair stepping out in front of the cameras at last year's Las Vegas GP (pictured)

They engaged in a rare public display of affection at the Mexico GP last October (pictured)

The 28-year-old Scottish model has featured on the cover of Vogue and Marie Claire

And if that wasn't a big enough blow, on February 2 Ferrari had announced his spot will be taken by seven-time world champion Lewis Hamilton next year. 

That capped off an up-and-down few months for the 29-year-old as he struggled with an uncompetitive car last season, but still managed to become the only driver to beat Max Verstappen in 2023.

And even better, he also started his relationship with Donaldson, with the pair first becoming an item last June.

The 28-year-old Scottish model has been sighted at races with her beau, including at last year's Las Vegas GP, which he came incredibly close to winning.

Donaldson has appeared on the covers of high-end fashion magazines like Vogue and Marie Claire since winning a beauty pageant aged 17, when she was a student at the prestigious Perth Academy, dreaming of breaking into the fashion industry.

In addition to modelling on the catwalk at shows like Madrid Fashion Week, Donaldson founded her own activewear label

She casually dated Keeping Up With The Kardashians star Scott Disick in 2022

'My mum entered me and I was really surprised when I found out,' she said at the time.

'I am really excited to have won and am really looking forward to entering the Top Model UK competition.'

Donaldson was first linked to Keeping Up With The Kardashians star and Kourtney Kardashian's ex Scott Disick when the pair attended the premiere of a new series of the show in 2022.

They dated for two months before splitting up in June of that year. 

She founded the activewear fashion label Muse in 2020 during the pandemic, explaining: 'I knew I wanted to create something that not only I would wear and be proud of putting my name against, but also something that was missing from the market.'

Donaldson wasn't in Melbourne to watch her man win the Australian Grand Prix

However, she did join him in Bahrain for the opening race of the 2024 season (pictured)

Donaldson and Sainz were first seen out together in Milan in June last year, then fans started to think they were an item when they appeared at a golf course in Amsterdam in late August.

One of Sainz's sisters began following her on Instagram, adding fuel to speculation about a romance, before Donaldson took to the catwalk at Madrid Fashion Week last month in front of members of the driver's family.

While the pair haven't posted any shots of them together on their social media, they do comment on each other's posts regularly.

After giving the Melbourne race a miss, Donaldson's next opportunity to support her man as he fights for another victory - and a new contract for 2025 - will come at the Japanese Grand Prix on April 7.