Ok. We are goin to be heading to the track for the last week that its opeaned and my buds want to video their car down the track. They want a inside the car view, outside the car (on top of the car and on the bumper), behind the car, and a speedo view of everything. I know I want to get the"bullet" style camera. Also I want to run color camera with NO mic built because we want to place the mic for each camera in different place, to avoid a lot of wind noise. Also I know I need a DVR of some type. So anyone have any suggestions? The power must come all out of the car so I am trying to look for low voltage high quality camera....and a fairly good DVR with a good side HD. Anyone doen this beore. I am willing to change the setup, maybe wireless? Just throw me some commenst. THANKS