Originally Posted by chops

you definitely want a ceramic tint. not sure about your G37's, but on our Z's, if you dont get the navi/touring, the antenna is built into the rear windshield. metallic will interfere.

as for the clear tint for the front windshield, what brand is it? some will affect optical clarity, so if you can, ask them to cut a small test piece and squeegee it on. if it doesnt bother you, i would get it. i will have my front windshield tinted soon as well