First appeared in 1962 as a full sized two door coupe, similar to the Bonneville. In 1969 it was moved to the mid-sized chassis shared with Chevy's Monte Carlo. Was given a re-style in 1973. Many would agree that 1962-1977 were the most stylish years for this personal luxury coupe. But it was down sized in 1978 to a boxy generic design which continued till 1988. Thats when the Grand Prix was redesigned as a Front Wheel Drive aero jelly bean on wheels. 4 Door models were offered, due to the declining popularity of personal luxury coupes. The Grand Prix lost it's uniqueness and was just another boring GM sedan. It was redesigned in 1997, and 2004, but still continued the same look until the Pontiac name was axed in 2009.
I don't know what GM were thinking in the 80's, but they turned the cool Pontiac Grand Prix into a boring crap box that looked the same as all their other cars.
While the newer models have become more respectable and attractive, the models from the early 90s prove that Pontiac did not focus on form or function in its design. They are known to be unreliable, and are very unstable at speeds above 80 mph. The transmission is short-lived, and in third gear the entire ride will shake when your foot is not on the accelerator. The newer models have also improved the color options. They have expanded the spectrum to include more than just vintage-white, metallic aqua (made extremely popular by its cheap price due to it being extremely tacky), red, blue, and black.
Phil - "Hey Chris, can we take your 1992 Pontiac Grand Prix to school?"
Chris - "Nah, last time I tried to drive it, it broke down on the highway"
Phil - "Oh yeah... I forgot my bike would get me more chicks AND it would get me there faster"