Williams development driver Lance Stroll will race in January's Daytona 24 Hours for Ford Chip Gannassi Racing.
17-year-old Stroll will drive alongside Brendon Hartley, Alex Wurz and Andy Priaulx in a Ford EcoBoost prototype at one of the biggest sportscar races in the world. The young Canadian will also race in the F3 European Championship next year.
Stroll - who joined Williams as development driver in November - says he couldn't reject the opportunity to race at Daytona ahead of the European season.
"I'm focused on single-seaters in 2016 but when an opportunity comes along to compete in one of the world's greatest and definitely North America's most famous sports car race, with one of America's most successful teams in Ford Chip Ganassi Racing, it was too great an offer to turn down," Stroll said.
"The test and race will help keep me race-sharp and in shape over the winter in readiness for the Euro F3 season that starts in early April."
All of the 2015 F1 steering wheels
2015 F1 season: F1i's drivers review 10-1
