Via Ars Technica: "Gran Turismo 5: Prologue features 70 vehicles. Six tracks. Online play. On paper, it looks like a robust experience; supporters of the game bristle when it's called a demo on message boards. Having played the game for the past few days I can tell you... it's a demo. I wanted to avoid calling it that, and I didn't think that criticism was fair when it was being leveled against the $40 release, but after spending a significant amount of time racing around the game's six tracks and collecting those cars, a demo is exactly what this is."