There is a street theory and rumor that only darker than legal window tinting films look the best on cars and utes. That's not always been proven to be the case! Although window tinting wont make your car drive faster, it will improve it's looks and add to it's street value, as shown on picture below.

Window Tinting helps to block the sunlight and give you more shade, keeping you cooler while driving the vehicle. As another added bonus, window tinting blocks the Ultra Violet rays protecting you, your family and friends. 

For more info click here