The child who was abducted in January, 10 months prior to Jacob's abduction, was driven 10-15 minutes away and then assaulted. The child was able to describe much of the route.
The Jan child was not sitting in the front seat. He was instructed to put a stocking or something like that over his face and to lie down in the back seat. That is exactly what happened with Jacob. It worked, so the suspect was not going to change that part of the MO.
The child was told that there were child safety locks on the vehicle - as he lay in the back seat of the car.
http://kstp.com/kstpImages/repository/cs/files/Danny Heinrich Search Warrant July 2015.pdf
The context of my comment had to do with whether J.E.W. would likely flee his attacker, and related to that, whether J.E.W. knew of his attacker's intentions. Where did you learn that Jacob was told to put a stocking over his face and lie down in the back seat? What back seat? DR recalled seeing "him" in the front seat of a blue coupe - the same car DH drove at that time. But it doesn't matter. The point is that DH groped the boys in the crotch immediately ... so immediately that he groped one boy he didn't even abduct. So, it seems unlikely that after 30 minutes of sitting in the front seat of this car with this basket case that Jacob would not have known immediately what DH's intentions were.
Clarification: I think you're confusing two different cars. The M.O. you describe could not be carried out the same way with Jacob.