The aptly named Pretender did! Its not cheap, either him or his dad worked for Renault i think which helped him get discounts.
I thought about doing this when i first got my car, id say its worth waiting for bits, search for scrappies with 172s, offer stupidly low prices for stuff, some will say yes! Going new is a nightmare, the 172 grille alone is £150+
You will need front arches, sideskirts, front and rear bumpers, grille, different spoiler for the Cup, wheels and the interior.
Personally though, having Cup wheels and lowering my car 80mm i thought it looked better than any standard 172/182.
-Rob