I would never get rid of the C1 Luke, I know you hate them but I think its an excellent little car. There is talk of replacing it when it turns three next year, im very tempted to buy it myself! It does everything a small car should, its very well designed and built to be simplistic (I love that about it), the engine is full of character, it costs peanuts to run and feels solid on the road - I know you might not expect it but it does. It also seats 4 people easily, even I can sit behind my own driving position in it and the headroom in the back is great. Its decent on a long run for a small car too, I have a huge soft sport for them.
The 2cv, well its a fun car and always puts a huge grin on my face as its a real experience to drive one. Though its not fully my cup of tea and its taking up valuable garage space. I was looking forward to having good weather and being able to potter around town in it with the top back, but so far I have only managed that once
Its the 6 wheeled C15, I do like it and we could never get another one but I hate to see it sat doing nothing. Its always taxed, tested and insured but it just doesnt get much use. Mainly because we only like to use it on nice days, there are 7 other cars parked in its way of the exit and I dont often have much call to use it. I take it for a run every now and then and take it for its MOT, but rarely. It would make parking a lot easier! But it aint going anywhere and I doubt I would really want to see it go anyway.
No room for any more 'keepers' now