Check out Porsche Panamera 3D model on CGTrader for $2. High-quality mesh by SuryaAlexander: 1500000 polys, 1500000 vertices.
STL (Stereolithography, filesize: 12.7 MB), OBJ (OBJ, filesize: 18.2 MB), OTHER (Other, filesize: 15 MB), FBX (Autodesk FBX, filesize: 7.45 MB), PNG (PNG, filesize: 514 KB), BLEND (Blender, filesize: 15 MB)