Graphics: In general, vehicle models across platforms looked incredible and photo realistic. However, the major differences between the two versions was how each platform handled vehicle damage. Its was clear that Gran Turismo 5 had implemented a rarely used feature called Decal Tessellation. Without going into too much detail, the idea behind this technique is to take a displacement map texture, project it onto geometry - just like a decal and tessellate the geometry in real time so that the displaced geometry looks like physical damage to the vehicle. Plain and simple, mimicking realistic damage on the fly. On the flip side, Forza 3 simply swapped out decals and models which made collision between vehicles look rather dull compared to Gran Turismo 5. Although were not comparing graphical differences in this article, a little information about the vehicles damage systems felt appropriate.