If most you mean 1 then you are right. As we stand now, only the Hyundai Sonata is classified as a large car per EPA. Sounds like the Accord will be the second one - we'll wait for confirmation very soon.
As well as the Kia Optima. I thought there would be more since they don't seem any bigger than the Aura, Camry, or Altima.
Your'e right about the most things, but the Toyota Avensis for instance, is in Holland a great succes.
Toyota Avensis is a normal sedan, primarily for Europe. So it is an Accord rival, not an Accord Coupe rival. And i repeat it was designed with Europe in mind just like the Laguna, Mondeo, Vectra etc. Honestly i don't see where the Avensis fits in this