I'm glad you enjoyed the drive, Sam. Yes, even blatting between parking lots one gets a feel for how minimal these cars are. Staring up at Metro drivers adds to the effect.
MiataV8, the square scuttle (squttle?) idea makes good sense for an enclosure, and makes a straight hinge possible at the front edge of the door. With a molded fiberglass top, one could extend the door up into the roof a la Ford GT40, and even us of Santa proportions could get in it without looking like we're auditioning for Cirque du Soleil.
Those triangular corner window things? They could be formed out of polycarbonate etc as a quarter section of a cone, to blend the air smoothly around that corner. They're not windshield so they don't have to be safety glass.
I couldn't believe how the young waitress really took to Jack.
Maybe visions of sugar plums danced in her head, but more likely (and Sam, I can see you've never waited tables) it was because, every day but Father's Day, a server's tip depends on convincing the oldest guy at the table that she finds him charming.