Once I done a full run down of things left to do on the interior, I came across the meshes I created quite late in the project the interior light and rear view mirror. For the light I used the same shaders as the other lights within the room. As of the mirror I used a mid black shader and I created a reflections shader using a scene capture cube. The process can be seen within the images below.
I increased the default value of the cube map as wanted the image to look more crisp.
I duplicated the shader and create two new scene capture cubes to create the same effect for the wing mirrors.