Aston has a history of four doors:

Though not sure exactly what your angle is Mr.-914, as the 914 (your namesake) was a rebadged VW and surely not a Porsche in my books…
Richard: ouch. At least the 914 was designed and engineered by the Porsche family (Butzi on design, Ferdinand Piech on chassis engineering). That’s more than any Porsche since then.
Also, my family has owned a 911, 944, several 914s, 3 356s. My brother might have had a 928 too, but probably a beater.
356 I really like. Style, stiff chassis and comfortable. Hard to believe the thing ever raced. It’s feels like a reinforced Bug.
944s are seriously fast. From what I remember of my dad’s new one in '88, they were well built. Pain to work on though.
911…I’ve only driven a modified one. I only really like the '60s and '70s ones and the 993.
914 I liked. Funky '70’s looks, stiff chassis. It was fun. If I could afford a restored 914/6, I would have bought that in place of the Miata. Horrible build quality though, as it was made by Karmann to a price point.
I test drove a '98 Boxster before getting the Miata. I think the Miata is 90% of what a Boxster is, it’s just not as fast. I was surprised at the amount of flex in the Boxster chassis too. Also, it’s seriously bloated. Huge expensive tyres, brakes, etc. Pain to work on. The entry price for a used one is almost as low as a good as a newer Miata, but the maintenance costs are incredible. I could replace half my Miata for the price of a Boxster radiator. Insane.
From a design stand point, I stand by what I’ve said. They got lazy. They’ve been, more-or-less, resting on their name for a decade now. As much as I don’t like Ferrari, Lambo and Aston, they’ve all moved much farther in terms of design, quality and engineering in the same period. I think it’s a shame when I think of the really innovative things Porsche used to do.