Ford will soon set the production line in motion for the NEW GT 350. The last version was produced by Shelby America, an S197. S550 is selling well. Will this new 2016 model rival its sister cars in that manner. Is it really OLD Vs NEW on this model? The new S550 bears the Shelby name with its long history. There will be two versions, with a model carrying the letter "R". Pre orders were already assigned on the first production run. 