As there was a small grey car in that spot next morning, I think the witness remembered accurately.
At what time?
The truth of the matter is that we dont know if there was a small grey car there, or not. Assume that if you like, but I think that if you are using it to build scenarios, then you should make it plain that there may, or may not, have been a car there
If the witness did see that car then she didn't see it until she was at least around the very high corner wall (about ? 6 - 7 feet tall) and had gone a little distance along along Rua Agostinho de Silva. Then she would have been at least level with it and looking directly to the side thru waving fonds of the trees into a verty dimly lit parking area.
OR
She had passed it and was
looking back via the front drive in, again into a very dimly lit place.
IMO, but I think you will find that I am right.
Let's make it clear. I am not saying that there was, or wasn't, a car there.
I am saying that i dont think it at all likely that the witness saw it... there, but maybe outside the similar window in block 4?
cos it aint natural to look right to the side or backwards in a moving car especially if the place the passenger is looking at is dark
And the gusts would have caused the low level fonds [flexible low level twigs] which reached the wall to have been swaying and even thrashing around. Not much, if any, of a grey car in the dim light would have been noticeable beyond them IMO