Updated September 2011: More formats, higher resolution, UV mapping and some other improvements.
An Air compressor model created in Cinema 4D, at a suitable resolution for a backround prop, but still high enough detail to use as a star item.
ALL the file formats provided support UV coordinates, so no matter which file format you use, the texture should apply flawlessly. (You may have to create a new material and load the textures into their respective channels.) When exchanging file formats, this can hardly ever be avoided.
The preview images were rendered with Cinema 4D R12, using the advanced renderer.