Wow, I have almost the same car in coupe form. I don't have the rear speaker or fender mount turn signals. But same wheels, engine trans, axle, wheels and I think similar build date.

68 Road Runner (383/4speed, post car w/decor pkg) - Major Project
69 Road Runner w/472 Hemi & 4 speed.
70 Challenger R/T SE EF8 w/ V9J, U - A32 - Major Project
2023 Ford Mach 1