My 2012 Mondeo has a space saver spare whjeel and, although the handbook does not say don't use it whilst towing, I would be a little bit wary of doing so. Consequently I have thought about buying another wheel from our local car breakers which would be far cheaper than buying a brand new wheel. The problem that I have, though, is that my wheels are 17" and the car breakers tell me that they very rarely get this size in. They have plenty of 16" but no 17". The suggestion that was made is that a 16" may actually be suitable, (as a temporary spare only), but what are the thoughts of others. Any advice / suggestions would be welcome to help me make up my mind. Thanks in advance.