[Intouch]

yup i agree. it has to have far more than 3-400 horses at the wheels.
i have a 997 gt2 and a 997 turbo with 530 and 480 DIN hp.
by the seat of the pants feel, the cobra is much faster in acelleration. for all i know driveline loss is usually around 15%......20% at the max with lots of auxilliary stuff.