The model is made for smoothing, the stack is not collapsed.
The anti-aliasing modifier is enabled (display in the viewport - 0 iterations, on the render - 1-2 iterations)

Polys: 17,008
Verts: 17,014

-max 2015 corona
-obj (you need to apply MeshSmooth (1-2 iterations) to some objects)
-mtl
-textures
-material library

For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of the materials is adjusted