If there was an accomplice, what's to say that that person had not gone ahead? In either direction. E.g., to start up a car?
Gone ahead? And left the carrier standing there or following behind? If any car was used it would have been in the car park or right outside for a quick getaway asap. Not chosing instead to walk around to be spotted and potentially stopped! Including 45 minutes later! As some believe. If Madeleine was bundled into a car, no one noticed, and no one, ergo, would be taking number plates down. Its nonsense. None of it adds up, but whats new.
As for your post on Martin Brunts video, you are clutching at straws. The Mccanns would not have been staring non stop at their patio doors because they did not expect their kids to wake up, they felt safe, and certainly did never expect a burglar or abductor otherwise they never wouldnt have left them open in the first place. And even if they did they would likely see or hear nothing! Clean or dirty plastic sheeting! How many times?