This 3D model was originally created with Sketchup 7 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 These are recreations of Belgian track objects. These models where created for Simcity 4. I've placed a link to the file below.
STL (Stereolithography, filesize: 803 KB), OBJ (OBJ, filesize: 715 KB), 3DS (3D Studio, filesize: 762 KB), DAE (Collada, filesize: 1.4 MB), FBX (Autodesk FBX, filesize: 1.19 MB), IGE (IGES, filesize: 299 Bytes), MAX (Autodesk 3ds Max, filesize: 1.12 MB), SKP (Sketchup, filesize: 1.42 MB), OTHER (Other, filesize: 739 KB)