Here is some info just released on the options pricing. If this is correct it seems that the R wont have the large price difference that we expected compared to the 350. Seems like the cost adder of the R should be higher than 3500 to me, considering the wheels and brakes. But maybe that is 3500 over the Tech or Track packs which are 7500 and 6500.
http://www.autoblog.com/2015/04/28/...gt350r-mustang-option-pricing-leaked/#image-3
http://www.autoblog.com/2015/04/28/...gt350r-mustang-option-pricing-leaked/#image-3