The Ford F-100 is part of the Ford F-Series, a line of trucks marketed and manufactured by Ford since 1948 to present day. Originally a range of light trucks marketed as full-size pickup trucks under the name F-1, the F-Series has since grown to include the Super Duty series, which features pickup trucks, chassis cab trucks, and medium-duty trucks. Today the Ford F-100 line includes pickups, Super Duty pickups, Super Duty chassis cabs, and Super Duty Class 6-8 trucks.
The original Ford F-100 was the smallest of the F-Series trucks, produced from 1953-1983. Ford stopped making the 4-wheel-drive F-100 in 1978 and stopped producing the F-100 itself in 1984. The F-100 designation, coming after the original F-1 release, is rumored to have been influenced by the US Air Force's first supersonic fighter jet, the F-100 Super Sabre.
Just like the jet it's rumored to be named after, the F-100 series trucks were sleeker and more contoured than older models. Featuring a longer, curvier hood, the front blended into and became a part of the fenders instead of being separate pieces. The large, single-bar grille was removed and instead a double-bar grille came standard, along with a curved windshield as opposed to the flat design found in previous models. Beginning in 1954, the F-100 was even manufactured with a Y-Block V-8 engine that produced 130 horsepower. Years later, it also included seat belts to keep up with Ford's lines of cars.