I gathered the information on the SCS from a few historian Ford Mustang guys and I will ask regarding the exact numerical determinations of source so things are clear on the numbers I stated. The individual with the Red coupe in the HPM registry on page 51 does show the SCS coupe with the 15" rims like I have. Bear with me and I will get all the back up information regarding the SCS Hipo Coupe.
This option was only available in 64 1/2.
Thanks...