http://www.bialimotorsport.com/forums/threads/4016-Caddy-Build-Thread
(I believe it may have cost him more than a Macan so far!)...
On Sunday while on a long journey in the Macan I said "What I'd like to change on my Macan if I get a new one is the seat belts...." to which he informed me he'd just had custom seat belts 'made'....
They were from a company called.... FDTS (http://www.fdts-seatbelts.co.uk/) a small UK outfit that have loads of different colours available.
He removed the seat belts from the Caddy, took them to FDTS who have a factory of little old ladies with sowing machines, and they made the new belts while he drank coffee in the waiting room!
They return all the old bits to you so you could switch back to the originals if you wanted (I guess).
From memory he said it cost about £250 (not sure that is for one or both..... Guess the Macan having 5 belts will be a lot more, but it does give you options).
