Why are they so shiny, trying to use a deep blue and it looks almost bright
The alpha channel for the template on this car is quite light, which is why it appears so shiny. Easiest way I've found to fix this is by going into the alpha channel (by default in Photoshop the channels tab is next to the layers tab) and adjusting the brightness of the channel. For reference a white alpha channel will give a chrome look and a black alpha channel will give a matte look.