There are a number of ways to skin this particular cat. Do many people notice this? BMW thought so and ran an ad just showing the A-pillar of their 1988 5-series, or it might have been the 1995 version.
The little photo gallery shows a wide variety of ways to deal with the base of the A-pillar. It’s very complex since the glasshouse has to blend to the lower body; the doors need to close with a proper seal (are the doors inset, flush or to they cover the A-pillar?); the windscreen needs to be located; the wing has to terminate nicely; mirrors needs a home and finally the whole arrangement is pushed about by the location of the base of the windscreen relative to the doors.
The Honda CRV shown above is a puzzle as evidently the designers and engineers could not agree to move the door shutline and window base enough to make the tip of the side glass stay aft of the shutline. Citroen’s C3 is in the same category.
The point about this fraught little corner is that if you decide to avoid odd junctions you are committed to quite big and decisive limitations on the location of the door to the window and perhaps how the whole door closure is designed. With relatively upright cars of the 1980s this problem didn’t exist. As cars’ shapes have become more and more stretched the elements are moving around relative to one another in ways that can leave annoying detail flubs as on the Honda and Citroen. I imagine that the designer has drawn an expressive shape and then somehow had to find a way to fit that to a package. I presume the more sober of the marques keep the banalities of shutline management to the fore when sketching and this manufacturing and detail design can determine the character of the car. As in all aspects of design, it’s a trade-off.
Side to side relations: does the shape flow from the side to the front or from the glasshouse to the bonnet?
Door frames: do they cover the A-pillar fully, partially or not at all?
Windscreen to leading edge of the door: does the front tip of the side glass end at the leading edge of the door or does it extend forward?
The wing to A-pillar join: is this high or low or equal?