Presumably then the Climate Control model types are not able to achieve temperatures as low as the non climate control types because every car I have had , all with climate control have never got below 12C.
Why anyone would want to have frost on the inside of the screen therefore making it liable to a stress break beats common sense? Who wants frost inside the car 
only possibly an eskimo 
The air coming out of the vents needs to be considerably colder than the set temperature if you want it to achieve that temperature quickly..
So if it's 25C outside and you ask for 17C, the air will be at ~3C for quite some time trying to extract enough heat out of the air in the car to make it 17C. That's how all aircon and climate control systems work in cars, houses, offices..
As the air in the car approaches 17C, the air coming out of the vents will start to warm up to closer to the set point.
(Ditto for the reverse, if it's 5C outside and you ask for it to be 20C, expect the air coming out of the vents to be much hotter than 20C while it tries desperately to raise the temperature)
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Topic: Air con....How cold? (Read 1656 times)