PC75WR is color. That's what I use; it works great.
RadioShack has a BNC --> RCA adaptor for the video wiring.
Northern Tools has an awesome plastic box (think "Ammo Box") that I use, bolted to the floor. Cut some foam and I put the camera and my radio in it. Serves as a sorta-seat for the crew, too....
I had the same issue Dave Gran had - lighting issues. With the above-mentioned camera mounted to the main cage, just over my right shoulder, I see a lot of the dash (black) and the roof (formerly black), in addition to the outside. The camera is an auto-balance setup, so it tries to compensate....
Yep, with so much black in its view, the camera overexposes the outside.
I painted the inside of my roof white (easier for me with a removable hardtop), and it helped a ton; I may move the camera forward/outside at some point, but right now I like being able to see how smooth I am (or, more the case, am not) as I'm going through the turns.
In my Miata, I can see from A-pillar to A-pillar with this camera.
Jarrod