In F1, none of this particularly stands out. The mother of Mr. Sargeant’s Williams teammate, Alexander Albon, was jailed in Britain for swindling millions of pounds in fraudulent sales of high-end cars. A Russian racer, Nikita Mazepin, was booted from the sport after his oligarch father, a close ally of President Vladimir V. Putin, was sanctioned following the 2022 invasion of Ukraine.

James Vowles, the Williams team principal, said in an interview that he hired Mr. Sargeant for his speed, not his U.S. passport. “I’m incredibly pleased that the sport is growing in America, but I think it would be anything but disingenuous to say that Logan’s here for any other reason than I think he’s got this pure talent,” he said.

In his F1 debut in Bahrain in March, Mr. Sargeant finished 12th, outpacing this year’s two other rookies. “He has this insatiable desire to be better, to want more,” Mr. Vowles said. “He’s a perfectionist, and I like that in him.”

Tooting around in a Vauxhall Astra

Britain, where Formula 1 originated in 1950, remains the sport’s spiritual home, where most of its 10 teams are based. Williams was founded in Oxfordshire in the 1970s, but it’s now an American subsidiary: a Manhattan private equity firm, Dorilton Capital, bought the company in 2020 for an estimated $200 million.

It was an important cash infusion for a team that had struggled to keep up with rivals. Manufacturers like Mercedes-Benz pour enormous resources into their F1 teams, which double as an elaborate global marketing campaign and an in-house innovation farm; tech developed for F1, like engines that recycle braking energy as an accelerant, can trickle into consumer vehicles.