I may be a bit late with the advice, but I would call your nearest Mothercare branch and ask to try some seats into your car - most branches can do this (provided you can park near the store). Check that they have the seats you are interested in (you may need to go to a larger branch for some of them) and try them before you buy. I had a Peugeot 106 which is a similar car and I found the buckle length to be a problem - but try as many as you can because some may fit better than others. Also when the member of staff is trying the seat you like and it fits - have a go at fitting it yourself making sure you are happy you can do this when you get home!!!
Hope that helps!

Hi there, Trying to find a forward facing car seat for my growing 7 month old. There are so many to choose from but just want some advice from anyone who has got a Clio. The following I'm interested in but not sure if they will fit: Maxi-cosi Tobi Maxi-cosi SPS Ulitmax by Concord. Any advice will be gratefully received.