When Microsoft was preparing their XNA initiative in 2004, they asked several developers to create a demo using their XNA tools.  Pseudo Interactive won a contract, and the result was the XNA Crash Demo, which later evolved into Full Auto.

See the full demo on Pseudo's website

My role for the Crash Demo was mainly in environment texturing and lighting, although I also created a JavaScript for PhotoShop to aid in the generation of normal maps (which at the time was still New and Exciting).  The tool takes a selection and creates a heightmap from it with a perfectly beveled edge.  You can see its results on nearly every surface in the environment.  I still use it on occasion.

That year at GDC I gave a talk on creating art for the demo.

These screenshots were taken on PC.

Images copyright Pseudo Interactive