1. First photo (zoomed out) shows a white car very close ahead of the van which suggests the cars were either at a standstill or moving very slowly. 2. From the angle of the photograph, camera is more or less on the same plane as the A pillar of the van. This means the black portion is most likely a curtain. The optical illusion is that it is the A pillar of the van on the passenger side, which is not the case.