Hey there, I know it's been a while since you posted this, but I was wondering how you found a fix for the window tint gap on your GM car? I had a similar issue with my old car, and I found that using a small, thin strip of tint along the gap helped to make it look a bit more seamless. It's definitely not a perfect fix, but it might be worth a try.
Also, just wanted to chime in and say that I recently discovered the
car shade for a baby option for keeping the sun out of the car. I wish I had known about it sooner, especially during those hot summer months! It's definitely worth considering if you have little ones or pets that you want to keep cool and comfortable during car rides.