Wow, that hurts to see, so sorry.
As for color matching you '15 WRB. I think any reputable body shop won't confuse the 2015 blue with previous years. They use computers to mix paint and 2015 will have a different formula. I wouldn't worry about the color too much. I do hope that they deliver professional work, as in no dust particles in you paint, tiger stripes, overspray etc..
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carma143, BRZ STi? As far as I know there is no such model. Isn't this one a Series Blue (or Auzora in Canada)?