i just picked up a 85 gn to add to my colection.i allready own another 85 gn.my question is on the 85 gn i picked up today it has t tops,grey carpet,a regular manual heat system and it has the electric assist breaks and also a hood emblem that says turbo buick. the 85gn i have had for awhile has hydro boost breaks,black carpet,touch control heating,no hood emblem,and the electric moon roof. is there a reason why there is such a difference in these two cars.the car i just picked up today i paid 100 dollars for it needs work but has no rot. if anybody can help me here many thanks in advance.........rob 85 gn