$16 Car showroom - Exhibition interior and exterior Low-poly 3D model by digitalspace. Available on CGTrader with 8375 polys and 14540 vertices. Check it out on CGHub.
MAX (Autodesk 3ds Max, filesize: 590 KB), OBJ (OBJ, filesize: 716 KB), FBX (Autodesk FBX, filesize: 885 KB), 3DS (3D Studio, filesize: 345 KB)