More On the Reality of Our Perception

I think in my original post about perceptions i suggested that most people haven't experienced many times when there perceptions were misleading them so i would like to present some examples to those who haven't.
The other day i was reading my physics text book and they gave a brilliant example for me to share. Consider it is a very cold day. you are out side and you aren't wearing anything... would you rather sit on a metal bench or on a wooden bench? While the metal bench feels colder then the wooden bench in reality they are the same temperature.

Now lets say your driving down the road very, very slowly, almost not moving at all (i.e. 2 miles an hour). Now a car zooms past you going 200 miles an hour. Now you are in a car going 200 miles an hour and a car passes you at 201 miles per hour... which car seemed to be going faster? If your honest with yourself you know that the 200 mile an hour car passing the 2 mile an hour car was perceived as going much faster. what is also important to note that if you are in a completely isolated environment (i.e. a completely white room with only just the cars) the 201 mile will literally look as if it is going slower.

Now these are two different types of examples, but why? in the second our perceptions mislead us because of a comparison but in the first our perceptions mislead us because... well i'll leave that for you to figure out.