I've got a dilemma and here it is.

I'm going to put some tint on my black/willow sedan. I've narrowed down my choices to Huper Optik Stark 30 and 3M Color-Stable 35%.

Here are the observations I've made so far.

Color- Huper looks green on my windows, especially with the willow interior. 3M looks like a "black" tint.

Heat rejection - Huper is 61%. 3M is 39%.

Are there any other factors I'm missing/not considering here? I think the 3M would look better with my color combination (especially the willow). Is the lower heat rejection for the 3M something I'm going to notice/possibly regret later?

Input is much appreciated.