JP, it might be because I own a JAP PS2, and the JAP version of GT3 has major alias problems. If anyone says it doesn\'t, then you are talking utter bull.
I personally believe anti-aliasing is the KEY to creating a game that looks like FMV/CG. If jaggies are present, then its obvious that its realtime, but when jaggies are illiminated, and all edges are smooth, it trully looks different.