"Included in those cars were some that were also in GT1 and 2," Yamouchi explains, "but we had to re-record and re-photograph those cars because the PlayStation 2 hardware specs are so high that the data we had for GT1 and 2 was insufficient. We had to take higher-quality engine sounds and more accurate pictures in order to match up with the PS2 Hardware specs." -Kazunori Yamouchi
Boyer, Crispin, and Greg Sewart. "Speed Demon." Electronic Gaming Monthly April 2001: 141
I have cited numerous publications and articles that prove my point. It is hard to see your point of view, but then again people with down syndrome often make illogical connections.