If you don't notice a flashing green light barely in your peripheral vision I would start to wonder if you ought to be driving at all.
At my height, the steering wheel blocks out half the dashboard. And, no, I can't fix this problem with a phone book (even if such a thing was still available).
My problem is that I'm forced to recline to a halfway recumbent position to keep from mashing my head into the ceiling.
In many vehicles I end up reclined so far back that I can barely reach the steering wheel. And, no, this is not because I have short arms. It's because the rear passenger window has now entered my peripheral vision. If this strikes you as strange, then I suspect it's been a long while since you spent any quality time with sin/cosine. (I have a wine bottle a mere 2" too tall for one of my cupboard shelves. If I tilt it to 45 degrees it fits just fine.)
So then I have to crank the seat forward until my knees are striking the front dashboard. Strangely, I don't find this uncomfortable for my legs, unless I wish to move them.
My peripheral vision is now roughly oriented toward the driver's seat-belt pulley, and my eye level is horizontal to the tint line on the windscreen. By the time I get the steering adjusted to a comfortable position, it's almost a certainty that half the dashboard is occluded by the top half of the steering wheel.
I can't see stop lights, either, if I'm first to the light and I've pulled up to the stop line, unless I use the old ear-to-shoulder trick—or I spot some other aspect of the intersection control synchronized to the light I'm waiting on.
What look like large vehicles from the outside are usually just as bad. Sure, the cabin height is increased, but usually they take most of it away with a higher seat height (to better accommodate all those fancy seat motors whose very existence makes the seating position you most desire impossible to achieve).
You should book a week sometime in the Hobbit Hotel. It will do wonders for your imagination concerning the circumstances that others face. Probably you should do this before participating in the design of any mechanical thing to be used by anyone other than a jet fighter pilot (whose physiques are carefully restricted to the design environment).