McLaren Team Principal Andrea Stella has warned Red Bull's struggles with bouncing in Spanish Grand Prix first practice proves there is a 'challenge to deal with'.
Drivers are faced with a high-speed double right-hander to finish the lap for the first time since 2006 after the decision was made to cut what was the final chicane from the layout to boost overtaking potential into Turn 1.
But with limits being explored in FP1 at the Circuit de Barcelona-Catalunya, multiple drivers struggled with bouncing through the final corner, with Lando Norris complaining of porpoising from his McLaren.
Red Bull also struggled with compliance through the final sector, despite having controlled porpoising since the inception of ground-effect aerodynamics last year.
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Asked if this was an issue that was created by upgrades or purely a track-specific problem, Stella told media including RacingNews365.com: "If we were alone here, I would say this is porpoising.
"But the fact we heard the same coming from Red Bull as well highlights it could be a track-specific element all the teams have to deal with.
"Our understanding as the Red Bull was a little more robust in terms of coping with porpoising.
"So it could be a track feature, a challenge certainly we have to deal with - we understand Mercedes and Red Bull have to deal with it based on their comments.
"It could be a performance limitation because to deal with that, you need to make some adjustments that might cost us some performance somewhere else."