On 24 July 2025, Rebecca Donaldson, girlfriend of Formula 1 driver Carlos Sainz, celebrated her birthday. To mark the occasion, Carmen Montero Mundt and Alexandra Saint-Mleux, the girlfriends of George Russell and Charles Leclerc respectively, shared warm birthday messages for Donaldson.
Carlos Sainz, currently racing for the Williams F1 team, began dating Rebecca Donaldson in 2023 after his seven-year relationship with Spanish journalist Isa Hernáez ended. Over the past months, Sainz and Donaldson have frequently been spotted together in the Formula 1 paddock, strengthening their public profile as a couple.
Birthday Greetings from George Russell and Charles Leclerc’s Partners
Carmen Montero Mundt publicly wished Rebecca Donaldson a “Feliz Cumple Rebe (Happy Birthday)” via her Instagram stories, showing support from the Williams driver’s close circle. Alexandra Saint-Mleux also contributed by posting a photo of Donaldson accompanied by cheerful emojis, highlighting the warm friendship among the partners within the paddock.
Rebecca Donaldson’s Career and Background
Rebecca Donaldson hails from central Scotland and attended Perth Academy. She has built a successful career as a professional model and is represented by Brand Model Management. Over time, she has appeared on prestigious magazine covers including Vogue Ukraine and Marie Claire México, establishing herself prominently in the fashion industry.
Donaldson credits her mother for encouraging her early entry into modelling. In a 2011 interview with the Daily Record, she shared,
“My mom entered me and I was really surprised when I found out. We had to go to rehearsals to practise catwalk type dances before going in front of four judges.”
This early boost played a key role in her career development.
Carlos Sainz Reflects on Red Bull’s Decision Regarding Max Verstappen Partnership
During the 2024 Formula 1 season, Carlos Sainz was frequently rumored to be joining Red Bull as a teammate to Max Verstappen for the 2025 campaign. Yet this move did not materialize, and instead, Sainz signed with Williams for the 2025 season. He has publicly expressed confusion over Red Bull’s choice not to pair him alongside Verstappen.
“The only thing I can say is I genuinely get on well with Max. This is what people don’t see from the outside. Like, we had a rivalry on our first year in Formula 1 in Toro Rosso, but it was a relatively healthy rivalry in terms of him and me, the way we used to go about racing. And now we get on really well. So, if that’s the reason I don’t understand why they wouldn’t want me next to Max, because I think we would actually be a very strong pairing in Formula 1.” —Carlos Sainz, High Performance Podcast
Sainz and Verstappen were teammates early in their careers at Toro Rosso, which was later rebranded as AlphaTauri. Verstappen moved to Red Bull in 2016, while Sainz joined Renault (now Alpine) in 2017. Since then, Verstappen has remained consistent with Red Bull, whereas Sainz has switched teams multiple times before arriving at Williams.
The Importance of These Relationships in the F1 Community
The close friendships and public support among the partners of Formula 1 drivers demonstrate the strong social connections within this high-pressure sport. The birthday messages sent to Rebecca Donaldson from Carmen Montero Mundt and Alexandra Saint-Mleux show a network of camaraderie beyond the track.
Furthermore, Carlos Sainz’s reflection on his relationship with Max Verstappen hints at ongoing dynamics within the sport’s top teams, which can influence drivers’ career paths and team strategies. As the 2025 season unfolds, fans and insiders alike will watch how these interlinked personal and professional relationships develop.
Our Reader’s Queries
Q. Is Charles Leclerc a millionaire?
A. By 2025, Leclerc’s net worth is often said to be about $125 million. This figure is a significant increase from the $50 million estimated just a couple of years earlier.
Q. Does Charles Leclerc have a PhD?
A. Charles Leclerc completed his doctoral studies in neuropsychology at the Université de Montréal. His thesis, which resulted in several scientific papers, examined how the brain reorganizes when certain areas receive little or no stimulation.