Packard introduced the first power windows in the 1940
Packard 180 series.
[1] This was a hydro-electric system. In 1941, the
FordMotor Company followed with the first power windows on the
Lincoln Custom (only the limousine and seven-passenger sedans).
[2]Cadillac had a straight-electric divider window (but not side windows) on their series 75.
http://www.motorera.com/history/hist07.htm
Good stuff in that link
In 1918, a young inventor named Malcolm Lougheed (who later changed the spelling of his name to Lockheed) applied hydraulics to braking. He used cylinders and tubes to transmit fluid pressure against brake shoes, pushing the shoes against the drums. In 1921, the first passenger car to be equipped with four-wheel hydraulic brakes appeared -- the Model A Duesenberg.
The first power steering system on an automobile was apparently installed in 1876 by a man with the surname of Fitts, but little else is known about him. The next power steering system was put on a Columbia 5-ton truck in 1903 where a separate electric motor was used to assist the driver in turning the front wheels
Robert E. Twyford, a resident of
Pittsburgh, Pennsylvania, included a mechanical power steering mechanism as part of his patent (U.S. Patent 646,477) issued on April 3, 1900 for the first four-wheel drive system.