As you travel with your hand sticking out of a car the sensation you have is one of cooling: even though molecules are transferring energy to your hand, you interpret it as being colder. Now, at a certain speed your hand would actually melt down, and I'm assuming you'd be feeling warmth by the time that happened.
I'm wondering how this works: how can your body sense warmth and cold from a phenomenon that, physically speaking, is just about molecular collisions?