Pontiac Star Chief
The Star Chief was a car built by General Motors' Pontiac division between 1954 and 1966.
Between 1954 and 1957, the Star Chief was Pontiac's prestige model; the car was easily identified by its chrome star trim along its sides. When the storyline of I Love Lucy pointed towards a Hollywood setting in the 1954-1955 season, the characters "drove" (in episode 110, "California Here We Come") to the West Coast in a 1955 Star Chief convertible. In 1954, Pontiac also introduced air conditioning with all the components under the hood, a first for the price range. Seat belts were added as options in 1956.
In 1957, the high performance Star Chief Custom Bonneville was introduced as part of its divisional head's push to raise the marque out of the doldrums. The silver streaks running down the hood were dropped. All gauges were placed in an oval on the dash.
Source: Wikipedia, 2012