When Joe parks Jerome's Jaguar (after Jerome failing to do so), the shot from the outside shows that the car is parked between two other cars, one in front and one behind theirs. When however, the shot changes to the back seat towards the front, we see that there is no car in front, just empty road.
Joe: It's actually the souls of the trees we're seeing in the winter. In summer everything is green and idyllic but in the winter, the branches and the trunks all stand out. Just look at how crooked they all are. The branches have to carry all the leaves to the sunlight. That's one long struggle for survival.