There was a time when being a rocket scientist represented the pinnacle of engineering. Maybe not so much anymore...its no longer a nascent field.
I recently tinted my windshield with Stratos AirBlue 80. Its not really "tinted" although it has a slight blue tint to it. But the heat rejection from the film is unreal. Definitely a MUST DO for that huge piece of glass.
Oh - and converting a 3 person seat to a 2 person is the best space savings you can do if you dont require that middle seat. Completely transformed the usability of my van