Donaldson often takes his seat in the front row at fashion week events and styles up for appearances in the F1 paddock to cheer on Sainz. Alongside modeling, he launched an activewear line during the pandemic.

Formula One racer Carlos Sainz Jr. is gradually getting used to his new role with Williams following his well-known departure from Ferrari due to competition from the seven-time world champion.
Lewis Hamilton
.

During his initial race weekend with Williams at the opening Australian Grand Prix in late March, there were moments showing promise; however, it concluded abruptly when he crashed due to a significant power overload in his vehicle. Providing comfort during this setback were his attractive partner, Rebecca Donaldson, along with his father, four-time Dakar Rally champion Carlos Sainz Sr.

Before the race
in Melbourne
The elder Sainz gave hints to the press regarding his son’s relationship and possible future plans. When asked if his son and Donaldson were planning to get married, Sainz Senior stated, “I believe that deciding to get married and start a family is quite a challenging choice for everybody. It requires careful thought. One must consider choosing someone to be the parent of one’s children. It needs thorough reflection.” Donaldson then entered.
Melbourne’s
The Albert Park Circuit saw Carlos Sainz Sr participating on the Saturday of the race weekend, which fueled the speculation about his marriage rumors.

However, who exactly is Rebecca Donaldson?

She’s a model

Donaldson, who is 29 years old, was born on July 24, 1995. Originally hailing from the historically significant town of Scone within the Scottish area of Perth and Kinross, she went on to attend the renowned Perth Academy.

At the age of 17, she embarked on a modeling career after emerging victorious from a modeling contest. She recounted to the Daily Record in 2022, “My mom signed me up for it, and I was quite astonished when they notified me.” According to her, they needed to attend rehearsals to practice runway-style performances prior to appearing before four judges at the Gardyne Theatre in Dundee.

Since then, Donaldson has established herself within the industry, gracing the covers of top magazines such as Elle, Vogue, and Harper’s Bazaar. Additionally, she frequently sits in the front row at major fashion week events—most recently, she was present at these shows.
Dior’s fall/winter 2025 showcase in Paris
.

She established an activewear company.

Amidst the pandemic, Donaldson ventured into entrepreneurship to launch her “dream” activewear line.

“I spent numerous days and hours during the lockdown feeling somewhat aimless,” she shared with Vestd in 2021. “Therefore, I resolved to chase my aspiration of launching a clothing line. I aimed to develop something that I myself would enjoy wearing and wouldn’t hesitate to attach my name to, as well as fill a gap in the market—affordable yet high-quality items suitable for everyday use.”

In October 2020, she introduced Muse Activewear.

Her connection with Carlos Sainz

Since 2023, Donaldson has been involved with Spanish Formula One racer Carlos Sainz, who is 30 years old. That same year, Donaldson appeared in an extravagant advertisement for Ferrari’s latest Roma Spider sports car, and it’s believed that this is where they crossed paths.

Although the pair maintains a relatively private relationship—opting not to follow one another on social media—it’s evident that they love spending vacations together (for instance, they celebrated New Year’s Eve in the Maldives). They also provide mutual support; when Sainz transitioned from Ferrari to Williams, Donaldson was there for him. Additionally, Donaldson regularly attends races as an elegant spectator, and Sainz frequently engages with Donaldson’s predominantly work-focused Instagram content.

Prior to Sainz, Donaldson was rumored to be connected with media personality Scott Disick – she even attended the premiere of
The Kardashians
alongside him in April 2022 – as well as
Leonardo DiCaprio
.

She already has an idea of who could portray her in a film.

If Hollywood were to consider adapting Donaldson’s life into a drama, the model has someone specific in mind for portraying herself. During an interview with Vestd in 2021, Donaldson mentioned that she believes Jennifer Lawrence would be ideal for the role.
Scarlett Johansson
“I believe they both are intense but also possess a silly aspect, something I can identify with,” she mentioned.

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The article initially appeared on the South China Morning Post (www.scmp.com), which is the premier source for news coverage of China and Asia.

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