we have a clio dci - in fact it is for sale
it does brilliant mpg - in fact can easily get 60mpg out of it on the motorway - and you dont have to drive at 70mph constantly to get that - I actually had the computer on 73mpg one day !!!
if you are looking for one that has been well looked after, but does have 74k on the clock (it is a June 03 car), pm me - we havent advertised it yet, but have the replacement company car already !!!
I actually used to have a Mk1 Clio 1.9d as well, and the average on a longish run was about 50mpg - nice car, and not a total slug for a diesel either - I loved mine.