I did the gm mats this go around. Weather techs from front from the 15 are in the shed, they destroyed the plastic they were supposed to protect. It was covered in micro scratches and looked grey instead of black. The GM mats feel much better and dont seem to destroy the plastic so I gave them a shot in the front. The back gm mat is 2 pieces and weather tech is 1 piece...
ive got NIB wethertechs for my 16 when i had it never installed for this reason..i think some scuff pads would maybe help, but never tried..
actually still have the gm floor mats in plastic too for that matter.