$4.99 Carts Pack Low-poly 3D model by ratstation. Available on CGTrader with 50966 polys and 44761 vertices. Check it out on CGHub.
BLEND (Blender, filesize: 1.63 MB), OBJ (OBJ, filesize: 1.15 MB), FBX (Autodesk FBX, filesize: 2.23 MB), UNITYPACKAGE (Unity 3D, filesize: 2.65 MB), STL (Stereolithography, filesize: 1.51 MB)