Mar.7 (GMM) Sergio Perez has felt the added pressure of stepping up the F1 grid for 2013.
Formerly the surprise podium-getter in a Sauber, the 23-year-old has now been signed up by McLaren, to replace the ultra high-profile Lewis Hamilton.
"Of course the pressure is higher now," the Mexican is quoted by Speed Week, as he represented his new employer at the Geneva motor show.
"Anyone who can't handle pressure should not sign for McLaren," added Perez.
According to most pundits, Perez has had a mixed first winter with the famous British team, complaining about "extreme" tyre degradation and a difficulty adjusting to the new MP4-28.
"Of course I would have liked to collect more information before going to Australia," he admitted.
"Some days it was cold and really difficult to learn about the car," said Perez.
"But I don't know anyone in the pitlane who had carefree winter testing.
"So it's the same for everyone, not a disadvantage for us."