Its the 1.2 TCE engine. It is a cracking engine really. Advertised as having the power of a 1.4, torque of a 1.6 and economy of a 1.2, they also do a 1.4TCE now too its in the Megane. All the manufactorers are using small forced iduction engines now, they get much better economy than a n/a engine.
I've driven a Clio 1.2 TCE and it was a nice unit to use, by no means a performance engine but it gives significant improvements over a standard 1.2 16v. It greatly improves the mid range usability of the engine. All relitave of course, like I said its no rocket but it makes the car a lot more useable than a n/a 1.2