As maddog62 has already pointed out, the tint factor has nothing to do with the UV reflection factor. Pilots, of all people, should know this (no aircraft has darkened cockpit windows). Why a pilot would thus resort to heavy window tint is thus a mystery in itself.
Why the locals want to tint their car windows black is, of course, another issue. Given their driving style, they perhaps do feel some sort of embarrassment. Or is it that they wish to drive around their Russian female friends without too much visibility?