someone advised me,
if you have to tint your entire car, including the front windshield, get only same-shade tint for all of your car's glasses.
if your front windshield has lighter tint, and your sides have darker tint, your eyes will adjust to the lighter tint of the front. when your gaze shifts to the sides, you will in all likelihood, have difficulty seeing the sides of your car.

may kilala ako,
used dark tint on his sides and rear.
he can't back out of the driveway, at night.
heh heh.