As BeanE has pointed out the date of the 17th was an error on the investigators part during the bond hearing. In his defense he said something to the effect that they took it the day after and he was wrong on his starting date so his date calculation was off which is how he came up with the 17th.She was with whomever Kc gave her to, or whomever took her from Kc. I know it is hard to believe that a babysitter would do this. The Preachers Daughter out in California that dumped the little girl in the drainage ditch in suitcase had her own little Daughter. It is possible. And so far, Kc story of giving Caylee to the sitter is the only one that makes sense to me. IMO
There is also the possibility that Kc sold the baby. It happens. I am suspicious of Kc being on that end of town (walmart) on the June 16th.
I do not believe that Caylee was in that trunk. The little tiny bit of trace evidence that was found (quetionable evidence) , is not consistant at all with other people whom have been put in trunks. There should have been lots of hair, lots of decomp, lots of dna, lots of bodily fluids. Caylees body was 36 inches long. The laundry bag was 24 inches long and only 16 inches in diameter with a steel ring. One trash bag was 36 inches long and the other was 24 inches long. It would be a difficult task to get her in there. After reading the Medical examiners report 10 times, I still can not tell if the main part of the body was in the bag. (arm bones, leg bones hand bones, foot bones all together). Yuri and other investigators did not even take the smell seriously. They didn't secure the car until the 17th. I can only conclude that they felt the smell was trash, otherwise if they really believed that smell was human decomp, they would have secured that car as a crime scene righ away. This is all just my opinion of course and I know it is a little off topic, and I am sorry for that, but I wanted to answer the question with all due respect.
Enough information was gleaned from the documents to support that the car was absolutely taken somewhere between 4:33pm and 7:45ish on the 16th. If you need supporting documentation it is peppered through the thread and should be fairly easy to locate.
Also I would be curious to know where the money she got from selling the baby went? She stole most everything she bought after Caylee's disappearance so I am not sure that makes much sense.