Carlos Sainz Vázquez de Castro, the Spanish Formula 1 driver currently racing for Williams, is a name synonymous with speed, tenacity, and a rich motorsport legacy. Born on September 1, 1994, in Madrid, Sainz has carved out an impressive career in the pinnacle of motorsport, transitioning from karting prodigy to a four-time Grand Prix winner. The son of two-time World Rally Champion Carlos Sainz Sr., he has not only lived up to his family’s storied reputation but has also established himself as a unique talent in F1. While fans may know him for his victories—like his maiden win at the 2022 British Grand Prix—or his stints with teams like Ferrari, McLaren, and Toro Rosso, there’s much more to Sainz than meets the eye. Beyond the headlines and podium finishes lie fascinating details that reveal the depth of his character, influences, and journey.
Here are eight lesser-known facts about Sainz that shed light on the man behind the helmet.
1. He chose circuit racing over rallying despite his father’s legacy
While Carlos Sainz Sr. dominated the rally world, winning the World Rally Championship in 1990 and 1992, his son opted for a different path. Inspired by Fernando Alonso’s 2005 F1 World Championship victory, a ten-year-old Sainz told his father, “Dad, I want to be like Fernando Alonso.” This decision led him to focus on single-seater racing, starting with karting and progressing through junior formulae, rather than following in his father’s rally tyre tracks.
2. His nickname “Chilli” has a playful origin
Sainz’s nickname “Chilli” isn’t just a nod to his Spanish heritage or spicy racing style—it evolved from a lighthearted progression among friends. Early in his career, pals called him “Carlos,” which morphed into “Charlie,” and eventually settled on “Chilli.” The moniker stuck, embraced by fans and even incorporated into his merchandise and helmet designs.
3. He’s a multilingual talent
Fluency in multiple languages is a valuable skill in the global world of F1, and Sainz excels here. He speaks Spanish, English, and Italian fluently, with his Italian proficiency honed during his karting days and later proving invaluable during his time at Ferrari.
4. His first F1 test was a family affair
Sainz’s initial foray into an F1 car came in 2013 at Silverstone during a young drivers’ test with Toro Rosso and Red Bull. What makes this moment special is that his father, Carlos Sainz Sr., was present to witness it. For a young driver stepping into the big leagues, having his rally legend dad there added a personal layer to an already pivotal career milestone, blending family pride with professional ambition.
5. He’s an avid hobbyist with diverse interests
Beyond racing, Sainz is a man of many passions. He’s an enthusiastic golfer, often sharing his swings on social media, and a proficient cook who enjoys experimenting with recipes. He’s also a football fanatic, supporting Real Madrid, and a keen cyclist who uses biking to stay fit.
6. His helmet design pays tribute to his roots
Sainz’s racing helmet is more than just protective gear—it’s a canvas of personal significance. Featuring the colors of the Spanish flag shaped as forward-pointing arrows, it symbolizes his national pride and forward momentum. He’s also included subtle nods to his father and racing idol Ayrton Senna, blending heritage and inspiration into a design that’s uniquely his own.
7. He overcame early karting setbacks
Sainz’s karting career wasn’t without its hiccups. During one of his first major races, his father watched him compete—and crash. Concerned for his safety, Sainz Sr. decided it was time to move on from karting. However, this setback didn’t deter the young driver. Instead, it fueled his resolve to prove himself in higher categories, eventually leading to successes like the 2009 Monaco Kart Cup and the 2011 Formula Renault NEC title.
8. He’s a strategic thinker off the track too
Sainz’s intelligence shines not just in his racing but in unexpected roles. During the 2025 Australian Grand Prix, he stepped into a strategist role, helping Williams secure a top-five finish for teammate Alex Albon. Admitting he felt “more nervous than when I’m in the car,” Sainz demonstrated his ability to think critically under pressure, contributing to the team’s success from the pit wall—a rare glimpse into his versatility.