The Recaro leather seats are Not standard; they cost $1650. They are an option. The rear brake rotors are not 15”. The gearing for the transmission is different in the manual verses and automatic. Your weight of the car is wrong: it weighs 3827; if you select the Recaro seats subtract 36 more pounds so it weighs 3794 pounds.
70k for 500 hp and 4.8 0-60 and 12.8 1/4 😂 Have you seen the c8 corvette market lately? 65k-75k are 2022s-brand new 2lts with better looks, better cabin, mid Engine, less weight etc Not to mention the Germans. C63 with the ttv8 are 55k