Check out OPEL ASTRA G 3 DOOR LOWPOLY Low-poly 3D model on CGTrader for $23. High-quality mesh by KG-DESIGN: 8476 polys, 8948 vertices.
MA (Autodesk Maya, filesize: 1.55 MB), BLEND (Blender, filesize: 2.67 MB), OBJ (OBJ, filesize: 2.08 MB), FBX (Autodesk FBX, filesize: 620 KB), DAE (Collada, filesize: 3.82 MB), STL (Stereolithography, filesize: 3.07 MB)