There are two problems when drawing to external steer-wheel texture:
1) External steering-wheel actually using 2 textures, first for the wheel itself and second part is for LCD. These textures also does not rendered in original texture dimension but stretched down few percents than original. When we draw from original texture, then any text/images drawn on it will also be stretched and won't readable. We can't draw to stretched textures because they're already mapped to video memory and prepared for rendering stage.
2) Only limited information can be drawn to external steering-wheel textures. The layout also won't be arranged easily. This is different than internal steering-wheel where the shape layout has already prepared for drawing valuable information such as current gear, rpm, etc.
However, half of this limitation has been solved when you use GPxPatch. You can read all informations about the car status from external view.
In reality, doesn't matter who's
right but most important is who's
left.