I work for a Renault Parts Dept.
Main thing to look out for on these are the electrics !
Any lights/wiper or body electric faults could be the UCH unit which is around £300 with the programming.
Check for running faults / flat spots - can be a few things either throttle peddle potentiometer (£50 ish), the loom that runs across top of engine can crack & corrode (£136+vat) or the throttle body (£260ish +)
Mechanically pretty ok just common wear & tear stuff like track rod ends, whl brgs & suspension top mounts.
Hope haven't put you off as the 1.2 16v are crackin little cars - apart from electrics !