Sergio Perez has ruled out the possibility of contesting anything other than F1 this season, adamant his focus is on Force India alone.
This season will see Fernando Alonso compete in the World Endurance Championship, running a dual racing programme along with his F1 committments.
This has raised the question of whether other drivers would be open to doing the same.
Perez, though, says the answer is a firm no.
He told Firstpost.com: “Right now, the Formula 1 schedule is extremely intense.
“I find that it needs all my focus on preparation to maintain my 100 percent throughout the 21 races.
“Some drivers are different, they might not require that.
“For me, my focus is to give my 100 percent to Formula 1 and Force India for 2018 and see where it goes.”