Check out AUDI A6 2009 LOWPOLY Low-poly 3D model on CGTrader for $23. High-quality mesh by KG-DESIGN: 13344 polys, 13527 vertices.
MA (Autodesk Maya, filesize: 2.44 MB), BLEND (Blender, filesize: 3.83 MB), OBJ (OBJ, filesize: 3.35 MB), FBX (Autodesk FBX, filesize: 880 KB), DAE (Collada, filesize: 5.76 MB), STL (Stereolithography, filesize: 4.84 MB)