Will 50% tint help keep some heat out of the car during summer? I was thinking of doing 35% up front, but it's still noticeable, and I don't wanna get hassled by the cops (illegal to tint front windows in NJ). I'm just wondering if it's worth it or not. I'm not going for appearance or anything, I just wanna keep the car cool during summer. BTW, I'll be getting 20% on the rear three windows. Anyone have pics of 50% anywhere on their car? Thanks.