All my previous Golfs (GTi x2, R32 x1 and GSW x1) had this but I didn't pick it up for my Tiguan and totally regretted it. I didn't ask for it on my ID.4 but it was on the sticker and I didn't complain. Great protection from spills and things like water softener salt.My previous VWs (Jettas and a Tiguan) came with that CarGO liner in the back. I almost grabbed it out of the Tiguan and kept it, but thought maybe the ID.4 would have one in it... The CarGO liner doesn't look dirty as easily, and will contain spills... I believe that they were all the same size, they were very similar at least.