It was a comparison between the two cars, essentially demonstrating how the much acclaimed 928 actually didn't stack up that well against the Z. It was broken down into categories like engine, reliablity and such. It was on some sort of free page account if I remember correctly so it might not exist anymore but I was hoping someone book marked it.
1989 240SX Fastback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1995 300ZX Twin Turbo Warning: Objects in mirror aren't as fast as they thought they were.