That car has a suicide rear door (not unlike the Lancia Appia we had on a while back). That made the precise character of the shutline feasible: a curve over the rear wheel intersecting at a point with the curve of the side glass of the front door. The way I see the actual production car, it’s a wobbly line and when the window rubbers at the B-pillar begin to become unmoored as they always do it’ll look appalling. So, I revised it. It would be nicer for kids sittting in the back.