There's a reason the word "Resto" isn't in the term "Pro-Touring"....Most of the "Pro-Touring" cars more resemble SCCA race cars than musclecars. While they maintain an original body with slight to wild mods, this is where it tends to end with the "Factory" type thing.
Where as a "Restomod" tends to look more like a factory musclecar, upgraded with 15-17" wheels, usually no roll cage, orignal interior, with a modded engine/trans/rear. still retain most of the factory suspension.