Ed is quite the stud muffin....
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The first car with an actual refrigeration system was the 1939 Packard. It consisted of a large evaporator, called the 'cooling coil,' which took up the entire trunk space. The only control was a blower switch. Packard, in fact, ran its advertising as, "Forget the heat this summer in the only air-conditioned car in the world. Cadillac followed suit in 1941 with 300 air-conditioned cars. All of these early air-conditioning systems had one big drawback: there was no compressor clutch, so the pump was on when the engine was running. To shut the system off, one had to stop, get out, open the hood, and remove the belt. It wasn't until after WWII that Cadillac advertised a new, high-tech feature: the air-conditioning controls. The controls were located on the rear package shelf, which meant that the driver had to climb into the back seat to shut the system off. Yet it was still better than reaching under the hood. The Harrison Radiator Division of General Motors may be credited with developing the first efficient, affordable unit that could be made in mass production. It was available as an option on all 1954 Pontiacs with V8s. It featured a two-cylinder reciprocating compressor, and an all-brazed condenser. It also used a magnetic clutch, so when it was not in use, no power was needed to drive the compressor, which improved performance and fuel economy.
Works better than Rube, Walt, Gary, and Lil