tga: I absolutely hate the B-Pillar in sedans. I have long legs. To sit comfortably, I have to put the seat as far back as possible. In a sedan, this places the b-pillar immediately to my left. So, to check traffic before changing lanes, I must constantly lean forward, or stretch backward to see around the B-Pillar. That has gotten worse in the past 25 years, because B-Pillars have grown larger with changing safety regulations for side impact.
In the good old days, B-Pillars could be eliminated entirely:
It isn't very likely that will happen any longer. But if I get to drive a coupe, at least the B-Pillar is moved further away from my immediate peripheral vision, making it easier to manage lane changes.
If a Model ≡ Coupe has Falcon Wing Doors, that makes it that much more special. Because my rear seat passengers would have an easier time of entry/exit, and I don't have to worry about door dings. Plus, it will look really cool!
Sunlight: The first car I ever bought new was the 1990 Honda Accord Coupe. It was basically identical to the Sedan version in dimensions. So there was no loss of legroom, headroom, comfort... I would expect the same of a Model ≡ Coupe. It would
NOT be a 2+2, or require amputations below the knee, or above the neck. The Sedan, and later Wagon, versions of the Accord were certainly better for anyone having to wrangle children in and out of child booster seats, of course. But for young, active adults, a Coupe is just fine. Keep in mind, that 25 years later, most people think I'm at least 20 years younger than I am...