Kiwi Brendon Hartley has lifted the lid on just how big a challenge it is driving a Formula 1 car.
The 27-year-old will take part in his second Grand Prix this morning when he lines up against the best race drivers on the planet in Mexico.
Hartley went through a whirlwind process trying to familiarise himself in the Toro Rosso Formula 1 car at last weekend's debut in Austin. Now a week on, it is starting to become second nature for the Le Mans 24 Hour winner.
"It takes a lot of study and preparation," Hartley told Radio Sport. "Before going to Austin, I had a 50-page manual to memorise. Even to start the car is a complicated process.
"The driver manual is just one point. It is kind of never-ending. At the track, it is just one meeting after another.