In some ways they can be said to be "organic" in the way we know the concept, though it is possible to install enhancements and tune up in various ways. Their "windows" are actually a combination of anti-glare panels and organs of sound reception/reflection so they can locate the source of a noise very accurately. This would be very important on busy roads. The "sideviews" are also for reflecting sound and light, and also mood indicators, like the ears of a horse.
