If one achieves a cooling in the Colt with hot vehicle (e.g. still a roaring sun)faster a cooling if one sets the temperature selector completely to the left (ALso to 16 degrees) although a desired temperature of 20-22 degrees should be drawn up? Or does this play no role in this system with regard to the cooling performance ? Flawed is that the Colt inside is generally difficult to cool.Probably it is on the Vanconcept and on the huge plastic surfaces that heat up enormously in the summer. greetings