Check out winnebago logo 3D model on CGTrader for $20. High-quality mesh by 3dlogoman: 18544 polys, 18556 vertices.
STL (Stereolithography, filesize: 663 KB), OBJ (OBJ, filesize: 549 KB), C4D (Cinema 4D, filesize: 321 KB), LWO (Lightwave, filesize: 301 KB), MA (Autodesk Maya, filesize: 534 KB), 3DS (3D Studio, filesize: 302 KB), FBX (Autodesk FBX, filesize: 564 KB), HRC (Autodesk Softimage, filesize: 754 KB)