McLaren's Fernando Alonso will compete in next January's Daytona 24 Hour sportscar race as preparation for an eventual tilt at Le Mans.
Alonso, a double Formula One world champion who is competing in this weekend's Mexican Grand Prix, made a big impression last May when he entered the Indianapolis 500 and led for 27 laps.
He has set his sights on becoming only the second driver, after Briton Graham Hill, to win motorsport's Triple Crown.
That entails winning the Formula One title, or Monaco Grand Prix according to other interpretations, as well as Indianapolis and Le Mans.
Alonso, 36, has won Monaco as well as his 2004 and 2005 world titles. He recently signed a contract extension keeping him at McLaren in 2018.
"The Daytona 24 Hours is the most iconic US endurance race and one of the world's great races. Everyone knows it," Alonso said.
"It's not part of the Triple Crown but, as I have always said, my aim is to be a complete driver and this experience will help me in the preparation for any other endurance race I might take part in.
"I am excited to go back and race in America.
Daytona comes before the start of Formula One's pre-season testing when drivers are mostly working on physical preparation for the year ahead.
Daytona, in Florida, will be the first time the Spaniard has raced a prototype sportscar.
Reuters