My 21 came in at 4098 with 3/8's tank.
DH is 3993 W/auto
21 Mach 1 was 3913 with auto.
So lets assume S650 is approx 80 lbs heavier in a kinda "GT350" auto, guise comparison.
That CF rotor thread reported saving 27 lbs for each front rotor (for 20+ GT500's).
Lets assume you save that 80 lbs back from the DHSC CF brakes (F/R rotors combined).
My guess, a bit more weight overall for 26 "GT500" vs 2020 designed GT500,
just from general weight creep.
So my guess is 4140 for S650 "CFTP".........
Great Job........ 50 lbs less than my guess. Maybe there is some weight savings somewhere we just don't know about yet.She's a fatty but we already knew that.
https://www.mustang7g.com/forums/threads/2026-dark-horse-sc-weight.178661/#post-3558869