Valtteri Bottas has opened up about his F1 career in a vulnerable letter online, revealing he starved himself during his time at Williams to alleviate weight concerns with the team’s car. The popular Finnish driver, 36, has returned to the grid this year after a year out with Cadillac , F1’s newest team. The 2026 campaign is Bottas’s 13th in Formula 1. The 36-year-old started his career with Williams in 2013 before moving to Mercedes in 2017, where he partnered Lewis Hamilton amid a period of all-out dominance for the Silver Arrows. He then concluded his first stint in the sport with three seasons at Alfa Romeo/Sauber from 2022 to 2024. Bottas impressed in his early years, quickly registering podiums for Williams but in a letter for The Players’ Tribune released on Wednesday, the Finn has revealed his extreme and dangerous approach to improving performance at the start of his second season in 2014. “OK, now the silly Finnish guy has to get a little bit serious,” Bottas wrote. “I won’t bore you, don’t worry.…