Normally they are the same car produced in the same factory on the same production line with different logos And slightly different bonnet and headlights, to change the look and let people think it's not the same car. The car body is the same, and the windscreen being an integral part of the body , it should be the same.
The fourth to look for is Lancia Phedra
I'd worry more about the extra equipment (ie. rain sensors), that can be a no-go condition to change the windscreen. It is also possible they will have different logos on the windscreen, too.