air conditioning system was first used in automobiles as early as the 1940s. Over the years, car air conditioning systems have gone through a lot of changes, such as the introduction of computer-driven automatic climate control. However, the basic concept and mechanics of automotive air conditioning remains pretty much the same. These same processes used in your car air conditioner are like those found in a home window air conditioner or an industrial A/C unit.  A/C was first offered for Corvettes in 1963.