I've noticed that the Camry in my sig. has the most powerful (fan) and coldest a/c out of all the cars I've had and have ridden in, on a 95 degree summer day I can get the car cooled down to mid 70's in a matter of minutes where as the Dakota takes much longer and seems to suffer under 30 MPH, the side windows do seem pretty thick in the Camry compared to other cars I have had, are they possibly laminated/insulated better? just curious what mechanism makes the a/c so effective.