Check out Spiral Ramp for Car Architectural Circulation System module 3D model on CGTrader for $22. High-quality mesh by modernarchstudio.
STL (Stereolithography, filesize: 2.41 MB), OBJ (OBJ, filesize: 329 KB), 3DM (Rhinoceros 3D, filesize: 1.08 MB), DAE (Collada, filesize: 844 KB), 3DS (3D Studio, filesize: 233 KB), FBX (Autodesk FBX, filesize: 204 KB), DWG (AutoCAD, filesize: 164 KB), STP (STEP, filesize: 491 KB), DXF (DXF, filesize: 684 KB)