Pontiac Star Chief Safari
For 1957, Pontiac applied the Safari nameplate to all of its station wagons in all of its product lines (Chieftain, Super Chief and Star Chief Custom).
While the high-trim unique 2-door body style was still available, Pontiac added a four-door high-trim version to the Star Chief Custom series mid-year which was named Safari Transcontinental. This half year series featured special exterior trim to set it apart from other Pontiac station wagons. Despite only being on the market for the last half of the 1957 model year, the Safari Transcontinental outsold the special-bodied two-door Safari.
Source: Wikipedia, 2012