My "Current" GT40 Specification
Below is how I see my 40's spec today. It will continually change due to technical and financial issues I'm sure.
Brakes
Front calipers are AP Racing 6 piston CP5555-808-9S4 clamping a 343mm (13.5") diameter 32mm thick rotor (DBA 5055.1)
Rear calipers are AP Racing 4 piston CP5200-808-9S4 clamping a 328mm (12.9") diameter 28mm thick rotor (DBA 5046.1)
Update : 3rd May, 2008