Saw this posted about a new 2014 Z/28.R and it being a race version and thought it was interesting. I don't see where it specifically says what the differences are, just the similarities....enjoy (or curse) your choice.
thought it might have been better if it is that similar then lose the ".R" designation. Let the Z/28 stand on its own http://www.windingroad.com/articles/blogs/chevrolet-reveals-2014-camaro-z28r-race-car/
it will be interesting to see how it does among competition .... we will have to post the results after it races. Alone on a closed course is one thing, in race with top brands is another.
(Camaro Z/28.R race car debuts in a 2.5-hour endurance race ahead of the 52nd Rolex 24 At Daytona) so not quite ready for the big boy races