“An engineer described Sebastian to me as [like] having a performance engineer behind the wheel.
“He wants to know as much, if not more, than the performance engineer you have working on the car, whose job it is to understand every little aspect of car performance.
“Seb wants to know that much – plus more. That’s a good trait to have, he has that, he carried that with him to our team.
“We see it and he is really, really hungry, as he said, to have fun again in Formula 1. But fun to him means being competitive.”