I have had my 106 for around 4 months. After only 6 days, it wouldn't start. After an hour of persistence, I left it, and came back, and it started first time. This happens every couple of weeks, and sometimes it can cut out at junctions.
The front windscreen leaked, leaving puddles of water throughout the car, and the insulation under the carpet still has not dried out to this date, leaving a horrendous cabbage smell.
My breakdown cover company have told me that my car has an "intermittent electrical fault" - I have got to know them well over the 4 months! They can't pinpoint the exact problem, but when driving over 70mph or shortly after driving on a motorway, the car will lose power when accelerating.
The car scratches very easily. Without doing them myself, my car seems to have around 10 different scratches and bumps compared to the 1 when I bought it. I have no idea how the majority of them came to be, but the paintwork seems to damage easily.
My boyfriend says the pedals are far too close together, and he presses 2 at a time if he is not careful. I have smaller feet and haven't found this though.