The first heating systems appeared in cars in the 1930s, over time, they were improved with fans supplying external air to the cabin. Air conditioning came to cars in the early 1950s, and no one is surprised, that it initially settled almost exclusively in the American "road cruisers".
The fancifully advertised "air-conditioning" brochures was an expensive addition, but nonetheless it quickly became one of the most popular options, and over the years, the standard of equipment for American cars, of which currently only 10% are devoid of this device. In Europe, air conditioners were offered a dozen or so years ago almost exclusively in the most expensive luxury limousines. Car fashion trends (np. a new class of minivans) and the fight to reduce aerodynamic coefficients made, that inside the cars of the eighties and nineties it was simply too hot. Increasing the glass area, and their significant inclination led to an increase in the thermal load on the interior. Solution, which could guarantee the right atmosphere for the trip, there were only air-conditioning installations. Currently, all manufacturers offer such systems, even in mass-produced small-scale cars. The popularity of air conditioners is growing, Sure, that their price is also falling, despite significant technical improvements introduced in recent years.
In the first air conditioners, the evaporator was placed in the trunk, and cold air flowed into the interior through grilles located in the rear roof pillars. Over time, the evaporator was moved to the engine compartment and blocked with the heater, fan, a system of ducts and dampers regulating air distribution. In the eighties, systems appeared that made it comfortable, dual-zone climate control for the driver and front passenger of the right front seat.