Alonso will make his sports car race debut later this month with United Autosports, having enjoyed a three-day test with the team last week at Daytona International Speedway.
Alonso is using the race as preparation for a possible entry to the 24 Hours of Le Mans this year with Toyota, with the race being a key part of his bid to become just the second driver in history to complete the ‘triple crown of motorsport’.
“I don’t think so,” Alonso said. “There is one already, Lance Stroll, racing this weekend with us. I only see him maybe doing this because he loves racing as well and he’s from Canada and it’s part of his culture as well, these kind of races and the American championships.
“The other guys, I doubt it, because in Europe we normally focus everything on one championship. The teams, they became more and more professional. There are a lot of training camps, a lot of preparations, a lot of simulator time before the F1 winter testing starts, and it’s not easy for the drivers to go out of that one concept.
“I think for other drivers in Formula 1, it will be difficult to get that vision.”
The last high-profile F1 driver to enjoy success outside of the sport was Nico Hulkenberg, who won the 24 Hours of Le Mans with Porsche while being under contract with the Force India team.