Im glad your missing your C5 Davie, Ive tried twice to change cars and get something which isnt a C5 but I can't find anything which does so much and I like as much, so I end up getting another
Given the MPG you get from your 107, im sure you could get pretty excellent fuel economy from a 1.6HDi C5. They are very fuel efficient and your obviously a very economical driver. I only manage 50MPG from our C1 the way I drive it, its often cheaper to go in the C5

Mine is the 2.0 138 and I still get 48-50MPG from it, even with my lead foot, but that is a lot of motorway miles which is where it excells and the C1 doesn't - mind its very good for a tiny car. My C5 does closer to 60MPG if ive got the cruise to 70. 107/C1s are great, I do really enjoy driving ours, its hard to get me out of it at times.
No real updates re. cars. I spent a little while yesterday adjusting the tracking on my C5. I had been thinking for a while it was a bit numb and not as direct on the steering as it once was. Especially after I drove our C5 estate it got me thinking. Sure enough, it was toeing out by almost half an inch. Ive not hit any curbs so I can only put it down to the huge and plentiful speed humps and many potholes in the roads around here, some are big enough to lose a small car in! The tracking is now spot on, it does feel tighter to drive again now and no doubt my tyres will scrub off just that little bit less.
The 2cv is getting used a little bit too, the roads have been dry and salt free this week so we have all been using it for pottering about town in. Im hopeing to take it on the 2cvGB club drive in a couple of weeks up to the Tan Hill Inn, but i'll see what the weather is like. I also had the C15 and XM for a drive the other day too, a nice treat for them, I cant remember when either was last used but both went superbly.
I hope everyone had a good Christmas, it'll soon be 2012!