Yes, badging something it is not is IMHO not fair to the genuine owners of the original article.
We have a genuine Strada Abarth. Last real Abarth to be produced before Fiat folded and merged the Abarth factory/brand with the Lancia motor sport dept. and produced the world thrashing Integrale rally cars and then the Alfa Romeo touring cars that thrashed everybody in the touring car race series Italy, Germany and then UK.
The Abarth badge lay low for a while till stupidly Fiat thought it would sell a few plastic spoilers on the Ceicento.
Meanwhile those rare and precious Abarth grille shields were bought by Uno Turbo and Coupe drivers who cut the legs off and stuck them on there upper 'B' posts and elsewhere thus depriving genuine Abarth owners of valuable parts.
On the lighter side I have many after market Abarth decals which I have collected over the years every time we go to Italy. EVERY Fiat we have owned (except for our Strada Abarth and Stilo Abarth) has never carried the Abarth badge. However our caravan does have subtile after market 3D Abarth shield on its bum. This only came about when we started towing the caravan with our Stilo Abarth (which I would add never was or will ever be a genuine Abarth).
Thankfully for our Strada Abarth I have brand new and genuine original spares of all the Abarth, Strada 130TC, Rimto 130TC and Fiat Abarth badges. These are worth a tidy sum of money these days.
Please may I ask people if they want to "pimp" their cars with X-Y-X then do not use Fiat originals for a model you do not own. Unlike Ferarri, Fiat only keep parts supplies (especially trim and badges) till parts run out. Yes you love your car, want to tart it up etc. etc. but come 25 years from now will you still have it? Will you be deprived of parts because somebody else wasted them on a short term project/whim/ego trip.
Go Abarth, go Lotus, go Cosworth etc. but please do not use the original parts.