Floor Matts
 

The WeatherTech mats fit perfect in the 2012/13 A6. I was not so lucky with my Lincoln. I also got the OEM rear trunk matt. I would be embarrassed to have this as OEM. It is really cheap! It feels like it is made out of styrofoam cup material... not rubber or plastic. I will keep it because there is nothing else and it will help keep the carpet clean. Be sure you are careful placing things in the trunk or you will damage the matt LOL.

Are you saying the trunk mat for the Lincoln or Audi seemed cheap?
And how much was the set if you don't mind me asking?

The Audi trunk matt was cheap in my opinion base on other matts that I have had in the past. The trunk matt was $108 and that's not cheep! I am guessing the profit on it was about $100.

Carpet floor mats
 

For my 2002 A6 3.0, I ordered from qualitycarmats web site. The mats are good quality and fit right.
Order Items #3444
Audi A6 3.0 2002-2004 4 pc set - 2 pc fronts, 2 pc rears; Material: Plush Tufted Nylon Pile; Material Color: Black; Binding: Serged (9.00); Binding Color: Black; Heel Pad: Yes (4.00); $107.95