Bombardier CRJ700 US Air Express (Polygon mesh 3D model) is available on CGTrader for $89. Original author: Dreamscape. Specs: 75900 polys, 42094 verts.
STL (Stereolithography, filesize: 1.01 MB), OBJ (OBJ, filesize: 2.21 MB), 3DS (3D Studio, filesize: 368 KB), 3DM (Rhinoceros 3D, filesize: 817 KB), LWO (Lightwave, filesize: 591 KB), MAX (Autodesk 3ds Max, filesize: 458 KB), DWG (AutoCAD, filesize: 1.07 MB), DXF (DXF, filesize: 1.03 MB), W3D (Shockwave 3D, filesize: 1.05 MB), OTHER (Other, filesize: 849 KB), TEXTURES (Textures, filesize: 2.24 MB)