If Klyntonius meant he couldn't see a workable series out of this as a premier class, then I agree with him.I will take you at your word. Picking just one from manufacturers that have more than that, and I may even have missed some:
Audi S4
BMW M3
Holden Commodore
Infiniti Q50
Kia Stinger
Lexus IS
Maserati Ghibli
Mercedes-Benz CLS
Porsche Panemera
Subaru Liberty
Toyota Camry
Genesis G70 (on its way in)
Honda Accord (due to be phased out next year)
I can see a reasonable second tier class like the old GT-Production though.