How do you think these compare to a RS Clio 1*2?
As Gally said in standard from they're pretty different (I've only experienced mine in standard form, awaiting exhaust system to be fitted etc). Standard vs standard the 1*2 is much more of a drivers car, a fair bit faster, a lot more responsive/has more urgency, and in general is a more "focused" car. Its not surprising when the ST has ~20-25 BHP less, and ~50+Kg more weight depending on spec of 1*2 (I'm probably being generous!)
Though the ST does feel very nice to drive, for what it is it has decent low down torque (more than you'd expect), and I'm led to believe this changes a fair bit with the exhaust. In summary - 1*2 is funner and faster, but ST is perhaps a nicer all-round package with room for modifications.
What I will say is my ST was a better all round car than my Trophy. It also felt decades newer. The Trophy was by far quicker and more a drivers cars but the ST seemed to suit my needs and wants more. The mods on mine were spot on. Eibachs and full Milltek system, filter, remap.
16s are one thing that the ST feel better with, whole car flows better on 16s.
Will I benefit much from a remap with Manifold/sports cat/cat back? And what bhp / lb ft should I expect?