That's what they are. Fortezza has always been great value for it's price (here a set costs 40 €...) but for one or other reason, the tanwalls' price recently doubled. But you can still do about 5000 km on them without problems.
Edit: they now cost 26 € each ("normal" ones), the tanwalls are 44 €.
Old or modern, these Supercorsa's are all the same. Mine is from 1996 and there's no difference with a new one.