Back-seat comfort was my main reason for doing it, especially on longer trips where passengers kept moving away from direct sunlight. The front stayed lighter, but the rear section got a shade that made the cabin feel calmer without making reversing awkward. I also checked how car window film looked on similar cars in daylight, because indoor samples did not tell the full story. The final result felt practical: less glare for passengers, a bit more privacy for bags, and still a clean everyday look.