Could well be a misprint then...
All figures I quote are for the facelifted vehicles, and from official Porsche publications - not the cr@p that appears all over the internet.
I have the Carrera in 4.9, the C4S in 5.1 (both Coupe)
Therefore the Turbo in 4.2 makes sense considering its modifications over a normal Carrera.
At the end of the day, this thread was for your efforts on your detailing so lets just stick to that. As I said before, your detail looks very impressive