The Louisiana Purchase stretched from the Mississippi River to the beginning of the Rocky Mountains. Official boundaries were not determined, except that the eastern border ran from the source of the Mississippi River north to the 31 degrees north.
Cooled (or air conditioned) seats work by confining cooled air directly in the seat where the passenger is seated. Different car makers achieve this in different ways, but here is the most common method: The seat is made with more porous material than traditional car seats, which are made to allow air to flow through them.
Cooler thermostats. Pretty much every hop-up guide for every car out there lists switching to a cooler thermostat as one of the first mods you should do to increase performance. The reasoning behind it is that engine will run cooler, and the cooler the engine the more power it will make. This is true to a certain extent, but it's not as simple as that. In modern cars I think it's a bad idea to run a cooler thermostat without doing a little homework first. First of all, most new cars have a much more sophisticated method for regulating heat than they did back in the day when engine temperature was solely controlled by the thermostat and and engine-turned fan.