When would she have been knocked down and carried off....? The window of opportunity. If people think she could have wandered out and been knocked down and carried off then its feasible she did go out of the apartment and wandered off somewhere and got picked up by a pervert who was conveniently hanging about, or she wandered off and fell down a hole..
Also one would expect blood to be found on the road at the scene of the accident, and the dogs would have alerted to that surely?
The thing is to run someone over would make a bit of noise...... Also the streets must have been lit up quite well for people to see all these perverts carrying of children....so surely someone would have seen this drama unfolding......?
A very quick internet search reveals that many children are found wandering in the streets in the middle of the night; the majority are well cared for and their parents are usually under the impression they are still safely tucked up in bed.
There are numerous cases of toddlers leaving nursery or playgroup some of whom travel considerable distances; almost invariably they are heading for home and sometimes even get there.
I couldn't find an instance when any of these children had been subject to being picked off the street by a predator.
Sadly there are also reports of hit and run incidents involving toddlers wandering at night; in at least one instance the driver left the vehicle to look at the child before driving off; but I could not find a single instance of accidental injury or death caused by a road traffic accident, of the child's body being lifted into the car never to be seen again.
That there was third party involvement at apartment 5A is the only reasonable assumption in Madeleine McCann's case; I think this is supported by the open window and raised shutter ... and until the foreign DNA is identified, that must be a consideration too.
I should have added that I think your analysis sums it up, Colombosstogey.