Well...
The 5th through 7th digits indicate body type:
P40 = 2-door Base Mustang Coupe
P42 = 2-door GT Coupe
P47 = 2-door Cobra Coupe
So, according to this VIN, the car is a GT not a Cobra.
But... not so fast,
This VIN is still a mystery to me, particularly the 8th digit, which...