Hi all   I was wondering on options for a spare wheel for when I'm towing.  I don't have a spare wheel at the moment (bloody canton sub woofer is in the way, even for a space saver), but I was thinking that a space saver wasn't really going to cut it when I'm towing anyway, and a full size wheel would be much safer.   I've got the Kodiaq RS with 20 inch wheels - is there any option other than buying a spare 20 inch in the same style as I have at the moment?  That would seem t