Carlos Sainz, the Spanish Formula 1 star currently racing with Williams, has drawn as much attention for his performances on track as he has for his relationship with Scottish model and entrepreneur Rebecca Donaldson.
The pair have been publicly linked since 2023 and are regularly seen together at races, in social posts, and on vacation, making them one of the sport’s most talked-about couples.
Rebecca Donaldson: Background and Early Life
Currently residing in the UK, Rebecca Donaldson was born on July 24, 1995, in Scone, Perthshire, Scotland. She attended the historic Perth Academy before embarking on a professional modeling career as a teenager.
Rudy Carezzevoli/Getty Images
Donaldson’s introduction to fashion began at 17, when her mother entered her in a modeling competition she went on to win, a moment that helped launch her path into the industry.
“My mum entered me, and I was really surprised when I found out,” she told the Daily Record. “We had to go to rehearsals to practice catwalk type dances before going in front of four judges at the Gardyne Theatre in Dundee.”
Aldara Zarraoa/Getty Images
Standing at approximately 5 feet 9 inches (175 cm) tall, the 30-year-old’s presence soon led her to international fashion campaigns and editorial spreads. Ever since then, she has been featured in renowned magazines, including Vogue, Marie Claire, Elle, and Harper’s Bazaar, and regularly appears front row at major fashion weeks.
Other Career and Business Ventures
Beyond runway work, Donaldson is also an entrepreneur. During the COVID-19 pandemic, she launched Muse Activewear, a brand focused on minimalist, versatile gym and athleisure pieces that blend comfort with contemporary style. The brand grew steadily but had to be dissolved for reasons unknown to the public.
She is signed with Brand Model Management, which has helped secure campaigns and partnerships across Europe and beyond. Her Instagram presence (over 746k followers at the time of writing), where she shares both professional shoots and personal moments, has also helped broaden her platform.
Rebecca Donaldson and Carlos Sainz's Relationship
Sainz and Donaldson were first seen together publicly in June 2023 in Milan, and their relationship became more visible as they were spotted at fashion events, paddock circuits, and summer breaks.
While the couple keeps personal details relatively private, they’ve been seen supporting one another through victories and setbacks, from podium celebrations to recovery periods after Sainz underwent surgery in early 2024.
Alfonso Cannavacciuolo/Euroleague Basketball via Getty Images
Rebecca has become a familiar face at many Grand Prix weekends, cheering Sainz trackside throughout the season and sharing moments of their life with followers. Fans have taken a particular interest in their dynamic, especially as the Williams driver values both privacy and personal support.
Personal Profile and Public Image
Though she divides her time between fashion work and travel, Donaldson’s influence continues to grow as she maintains a substantial social media presence. Known for her blend of high-fashion editorials and lifestyle content, she’s become a recognizable figure both inside and outside the Formula 1 paddock.
While the couple rarely discusses their relationship in depth, their appearances and shared moments paint a picture of mutual support and companionship that resonates with many fans across sports and fashion communities.