In too many cars the view forward is more constrained than I’d like. I’m not a fan of deep instrument panels, tall instrument panels, or low windshield headers. An increasing number of cars have at least two of these, and some have all three.

But what if the windshield could extend far back into the roof, as seen on this Citroen C3? Imagine how open the view forward would then seem. Opel, GM’s European branch, offered a similar windshield on a compact car. In North America, only Tesla offers such a windshield, on the new Model X crossover.

Though the Tesla is very expensive, its execution is simpler than the Citroen’s (details). There’s no extendable shade. Some sun visors that normally stow above the side windows can be pivoted 90 degrees and clipped into place. But these visors are fairly small and can’t cover much area.

In the Citroen, in contrast, more conventional sun visors are attached to movable section of ceiling. Don’t want sun on your head? You had move the ceiling forward to serve as a shade.

Or maybe I would like the Tesla approach is better, as you can then deploy a sun visor without covering up the clear roof. Perhaps tinting the roof eliminates any need for a shade? I’d love to be able to drive them both, to find out.