Glossy reflection test

This weekend, I was traveling by trains, with my notebook PC. While on the trains, I was writing and testing a new shading function for my renderer. It gives the Phong reflection model to be used on any surfaces.
The idea I came up with last week works well. But sometimes it goes slow down on some surface configurations. I'll look into what happens there later.
The scene is arranged with two LEGO men and a porche. These models are borrowed from a sample scene of Indigo renderer.
You might see glossy reflections on the surfaces of both the red body and the wheel covers.