Now that I have my new rear seat leather and can stop sulking (even my wife keeps saying thank god that parcel finally arrived) I have dug out my supply of backless gray carpet.
AMG69 was told by his trimmer that the carpet supplied was too thick and so he covered the knee rolls in black vinyl - which looks OK, but....
I think Gray carpet to match the floors would look much nicer.
The carpet I have looks like it wouldn't be hard to glue to the knee rolls I have after the vinyl is removed...