How do they change the tires and refuel those CARTS in pit stops in 15 seconds? WHEW...

Do they have one big nut for the wheels or something, all you hear is a whewheww pause for one second whewheeww, and its done!

Only if NTB and the Benz dealer can do that I would save a LOT of time.

Its too bad it our local dealers weren't as dedicated to our cars and our time. I don't know how they do it either, but they are amazing. Must take alot of practice and the knowledge that no matter how goof the driver is, it is often the pit crews that win or lose the race depending on how fast and well they do their jobs.