I'm sorry, WTF do you need 5% anywhere in the car the driver might have to look through. I have threatened to tear the legal(?) tint that came in my STI out a few times. It sucks, especially at dusk before headlights do any good.
Even 35% can seriously compromise low light and night visibility.
Put on sunglasses and buy a sun shade you gangstas.
And yes, you can read this whole post with "grandpa voice" in your head.
Now get the F off my lawn!