We've all seen footage of Formula One pitstops where the crew make alterations to the cars in a matter of seconds.
From changing all four tyres to rapidly refuelling - the speed in which they work is pretty damn impressive.
But the latest footage to emerge online proves just how ninja-like these pit crews really are.
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In a new video released by F1 team Mercedes-AMG Petronas, the highly-trained crew change the tyres on not one, but two, cars.
And what makes it so special? Well, they somehow manage to change a total of eight tyres in under eight seconds.
Yes, that's right: the video itself is only 20 seconds long. Not bad.
The insane vision shows Mercedes-AMG Petronas driver and six-time Formula One World Champion Lewis Hamilton flying into the pits with teammate Valtteri Bottas hot on his tail.
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With machine-like precision, the pit crew effortlessly change Hamilton's tyres on his number 44 car.
As Hamilton pulls away to return to the race, Bottas' number 77 car comes into the pits just seconds later.
Incredibly, you can almost see the rear of Hamilton's car as Bottas enters the birds eye view frame.
And then just like that, the two cars disappear from the pits in well under eight seconds - both with fresh tyres.
Featured Image Credit: Facebook/Mercedes-AMG Petronas F1Topics: Formula One, Lewis Hamilton, F1, Australia