As i said before, I carry both carpet lines, ACC and Trimparts and they each have there issues but ACC is the worse of the two.
ACC will start the process of fading and a Black carpet starts turning to a purple tint as soon as the ulraviolet sunlight hits the carpet, it is a fast process in a convert.
ACC is cut too short and will not travel up under the dash far enough.
ACC 80/20 loop look good but the TrimParts carpet is a little tighter loop
Trimparts carpet is cut longer and hides more of the underdash
Trimparts will begin to tint but it will take much longer for the color to fad, alot longer, I have one that is 5 yrs and the process still has not started on mine.
Trimparts carpet on 70 B bodys just does not have the driver accelerator heel in quite the right spot and they are working on fixing it, if you do not know what you are looking at you would not notice it until someone shows you the spot.
I sell 99% Trimparts carpet to 1% ACC and the good thing is I can sell the Trimpart Carpet for less then the ACC.....