Its more difficult to get such a good deal on a 1.4 16v as the 1.2 16v outsells it by such volumes. Having said that, Ive driven a 1.4 and have the daily use of a 1.2 Dynamique - and theres a bigger difference than youd think.
The 1.2 is reasonable and not particularly slow, but the 1.4 will keep up with most average powered cars. I drove a forum members 1.4 a while ago and burned off a Jag X-type diesel in it! Ok, so thats not a massive feat, but theres no way that would happen in the 1.2 I drive!
That said, Im used to driving a beast with over 250bhp and stepping into the 1.2 Clio isnt the downgrade youd think. Lovely engine... torquey at low revs and does 55mpg.