Hmm...
I think I've mentioned how DD screams in the car seat, right? Without giving up, too. But not always. She actually naps once in awhile now in the car seat. I had her scream one time for an entire hour ride home. I even stopped once. I was shaking and nearly crying. I didn't leave the house with her for almost a month after that. It was traumatic! She was basically limp and hyperventilating when we got home. I expect CIO won't work with this one.
My daughter was exactly like this until about 9-12 months. One time, on a trip to my wife's family's house,(an hour away), she screamed the whole way there and then kept screaming after we got there. Probably about three to four hours total. We tried everything to make it stop. Eventually the sound of shower water stopped her.