I can the top down and the windows most of the way down at a light without any problem. I can't believe the lights in Houston are any shorter and besides Bjorn, how would you really know? You've never had an operable power top on your car.
I've owned a 128, 131 and Strada. I aspired to owning an X-19, but fortunately never had the opportunity. They all seemed designed to catch on fire, and once on fire burn thoroughly.