what i meant was in the diffuser you have a thing where its like a hole in the flat bottom (you also have the behind the front wheels) there's a hole in the flat underside of the car, in it there's what appears to be a "stud" a circle thingy if you will. these are air Jack/rams (like a hydraulic/pneumatic ram). when the car goes in for a pit stop, to make it quicker the crew don't use "conventional" jacks, the car has these "rams" built in which lifts it up off the ground. i cant really remeber what i meant before, but there are things like "tubes" that are the jack themselves.
oh and yea....i'm Chris