1990
      When the 1990 GPs rolled into the showrooms last fall, a lot of reshuffling had occurred.  A new four-door body style was added to the roster, and the base Grand Prix coupe had been dropped.  The new lineup went as follows: an LE coupe and sedan, an SE coupe, an STE (Special Touring Edition) sedan and the limited-edition Grand Prix Turbo coupe.
      A new engine was added to the list of offerings, too the 2.3-liter Olds-designed Quad 4.  It was available only with the 3-speed automatic transmission, and developed 160 hp at a rather buzzy 6200 rpm. with 150 lbs.-ft. of torque at 5200.
      While the LE four-door was quite similar in appointments to its two-door counterpart, the new STE sedan represented an expanded view of what a GP is all about.  After 28 years, the luxury-performer concept had been expanded to include a four-door interpretation.
      Up front, the STE got unique front and rear fascias, with integral fog lamps across the width of the nose, a la Mercury Sable.  The rear sported full-width taillamps.  Inside, the STE had an analog dash similar to the Turbo's.  The STE was also the recipient of specific, articulated bucket seats.  In most other respects, the STE's interior was like the Turbo's.
      The STE's base engine is a 3.1-liter V6 hooked to a 5-speed manual trans, with a 4-speed automatic optional.  Also optional is the 3.1-liter turbo engine. While the STE has the same suspension calibrations as the Turbo, it uses smaller P215/50R-16 Goodyear Eagle GT+4 radials on specific 16x6-inch wheels.

1991
      The turbo coupe was dropped this year. It was replaced with the Grand Prix GTP.  The GTP offered everything the turbo coupe had but had the turbo engine replaced with the 3.4 liter, 4 cam V-6.  All noses on all the coupes were restyled.  The STE sedan also had the 3.4 V-6. A GT coupe was also available.  It was just like a GTP but the regular 3.1 V-6 replaced the 3.4 V-6.  The LE coupe was discontinued.

1992
      Just trim changes for this year.

1993
      No changes this year.

1994
      Pontiac simplified the GP line-up for '94. There were just the coupe and sedan.  If the 3.4 V-6 was ordered on the sedan, it was called the GT.  In the coupe, it was called the GTP. Otherwise, there was just the SE with the 3.1 V-6.  A Special Edition Coupe Package made the SE coupe just like the GTP coupe but with the 3.1 V-6.  The aero cladding on the GTP and Special Edition SE coupes were cleaned up slightly and the dashboards were redesigned incorporating dual air-bags.

1995
      1995 saw just trim or package changes.

1996
      All coupes received the aero cladding as standard equipment.  Only trim or package changes otherwise.


1988-1996


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