This '66 Shelby replica shows some of the differences between the '65 and '66 GT350 exterior. There were many more colors available, and the new rear side scoops could be hooked up for rear brake cooling, if desired. The most noticeable change is the triangular rear quarter-window. It looks cool and eliminates the blind spot made by the fastback vent panel. The original side vent extractors were so beautifully designed and built by Ford that it almost seems a crime to omit them for a window. But no one would argue that the '66 quarter-windows don't look great, and they're made of Plexiglas to save weight.