What was the last year of the Pontiac
Grand Prix GT with a regular non-supercharged
motor??? Was it 2006???

should have been 05 was the last gtp so i think the 06 is the gt S/C l32 right?

I believe it was 2006. In 2007 the GT became the supercharged version.

06+ were s/c gt's.

The 06 and 07 GT's were the supercharged models and that was the end of it. FOr 2008 you only had the base models which the N/a 3800 with optional dual exhaust and the GXP only.

So to answer the question, 2008 was the last year for the non supercharged 3800 motors.

So 2005 was the last year of the GT with a
regular 3800.

yes