Just speculating here, but if what KB says is true (and I don't see why it isn't) and CDC was shot on property, than I highly doubt CDC was removed from the property, too risky / messy when he has the convenience of that large property to hide things. I suspect they will find him there, somewhere.
I also believe the car was moved into the ravine within the last 2 weeks or so. I think somewhere up above they posted a helicopter flew overhead a couple weeks before but they asked the news to keep quiet about it and I'm sure they took photos and paid attention to what they could see, which probably means they couldn't see the car otherwise they'd have gone on property 2 weeks ago, right? Perhaps it was hid in the garage at that point in time, being painted or whatever it was to turn it that dark color. Just speculation again.