In February of 1970 the long awaited second generation Firebirds debuted in dealer showrooms.  The new Firebird was sleek, clean, and unlike any other car before it or since.  To simplify the model lineup Pontiac reduced the available model selection from five to four organized into more discernable functions:  the base Firebird was the least expensive entry level model; the Esprit was optioned with additional luxury appointments; the Formula 400 for performance-minded buyers offering muscle car performance at a great price; and the Trans Am for the serious driver, complete with all the high performance options.  

"Four separate and distinct automobiles. Each is endowed with its own personality. Each offers its own special set of advantages. Each makes its own contribution to the future of driving. 

But for all their individuality, there is something they all share. Call it honesty. Or practicality. Or any one of a hundred words. What it amounts to is a new approach to building the American automobile. An approach that stresses function over decoration. An approach that stresses the beauty of practicality and simplicity. It came about simple because we take the fun of driving seriously."