Looks to me , by the way it is laying in the pic, the front would be the upper right hand side,short back edge indents on the left would be the rear seat area,the longer runs up the front edge would go up under the dash area......just my opinion.The carpet I got for the AMX had the same issues.All wrinkled and jammed in the box,it layed down ok, but it was summer and I let it sit on the roof of the car in the sun to soften in up better.If you have the time you can allwasy lay it out inside get it lined up pretty well, and wieght it down in the seat well areas to get it to drwa down into them and let it set, or warm it up in tough spots with a hair dryer, or even one of those hand clothes steamers.The seat bolts will help draw it down, the toughest area I think will be the shifter/tranny hump.I would say start there and work it out from there centered and toward all the outer edges.
Good luck !! ( I used to put wall to wall down in houses , and custom work ) LOL< and yeah where did you get PURPLE ??