Huper Optik...that will keep your car cool. It is the probably the best stuff on the market.
http://www.huperoptikusa.com/
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2008 Interlagos Blue E90 M3 (Retired)
2012 Black Sapphire Metallic X5 M (Velos Designwerks Tune, LUX H8 V3 Angel Eyes, Black Sapphire Metallic Kidneys and Roundels, M floor mats
2009 Black Cadillac Escalade Hybrid