Yesterday we drove down to Portland to get the side and rear windows in our Volt tinted. Portland Tint Inc. installed LLumar ATC 40 film that blocks most IR and 99% of UV. It blocks about 55% of the visible light too. We drove home in 100F weather and felt much cooler. The sunlight coming through the tinted windows just did not feel as hot, and the reduced glare and brightness makes for less eye strain. The advantage is increased EV and gas range due to the reduced AC load on the battery. We’ll probably go back and have them do the front windshield with clear as well.