Well in that case An Abarth Grande is still a Grande, so your eleganza is already up there
A fair point, lol. To me though, it just feels special, the fact that it doesn't shout about the fact it's the top level, (unlike a fiesta, which has Titanium written in very noticeable writing on the back) and the fact that it is rare.
The cinq sporting has all that you listed to differ from the rest of the range, All of which only appeared on the sporting and made it drive unlike the others in the range. The Eleganza grande doesn't so is not a model in it's own right.
For me personally, that still doesn't make it a model in it's own right, it's still merely a variant of the Cinquecento, aimed at a certain type of buyer, same as the Grande Punto Eleganza. The Cinquecento Sporting was aimed at people who wanted a tiny pocket rocket, whereas the Grande Punto Eleganza was aimed at the people who didn't want/need anything bigger than a supermini, yet still wanted a plush, well equipped car.
In both cases, they represent bargains for the more intelligent used car buyer, lol!
Again i'll say it, the 500 pop and lounge. Same cars, different trim. Exactly the same as the Eleganza to the equivalent GP (basically a sporting without the Sporting goodies, but others in their place). Cinquecentos, the s and the sx are only trim levels, Seicento Sporting Abarths and Schumachers are just trim levels of the Sporting etc etc.