Your ideas really represent a leap forward, don't they? Civilization will be better off with such marvels!
1. I remember the days of "side-vents," and even moving along at highway speeds, "cooling" was negligible. I do remember the noise it made--and while the driver or front-seat passenger might feel some warm air blowing on them, there was none in the back seat. If you're not moving at highway speeds--such as when you're stuck in city traffic--the vents offer nothing in terms of cooling.
2. We are introducing legislation as to punish those who text or read e-mails while driving because they're too distracting, and yet you want to have hand-operated windshield wipers?
3. A tray for a radio? Why not install a wheel for a gerbil to run on? If the gerbil's fast enough, it may be able to power the radio AND the manual windshield wipers.
When I was a kid, I remember traveling between El Paso, TX and Tucson, AZ with my parents in our 55 Ford that had “Side Vent” air conditioning. It was nice, especially in July.