the body kits on the GT, SE ,and V6 are different and has a different body appearance which is that the gt has a sporty look to it and a black line around the midsection all around the car and the v6 has only one "ripple" on the side of it and the SE is the four cylinder which is either the 2.2 liter or the 2.4 liter and it has 3 "ripples" on the bumper. The GT has a 3.4 liter engine with ram air, has two exhaust pipes, the v6 has one and so does the SE. I used to have an SE and when i got my GT i began noticing the differences and its not to common anymore but there also is a Grand Am GT HO(High Output) i have seen it once at a junk yard and the only difference is that it has better pick up but has the same engine as the GT and that it was the top of the line in the Grand Am series