FV 4034 Challenger 2 Low-poly (Polygon mesh 3D model) is available on CGTrader for $149. Original author: cgeas. Specs: 135737 polys, 163633 verts.
MAX (Autodesk 3ds Max, filesize: 74.4 MB), OBJ (OBJ, filesize: 37.5 MB), FBX (Autodesk FBX, filesize: 92.6 MB), MAX (Autodesk 3ds Max, filesize: 74.4 MB), MA (Autodesk Maya, filesize: 106 MB), TEXTURES (Textures, filesize: 144 MB)