Originally posted by Stazi: Through the clutch via the crank. It has a special multiplate clutch that is small in diameter to keep the rotational inertia to a minimum, compared to a regular MT which has the clutch bolted to the flywheel, which is bolted to the crank. In the case of the GT, they left out the flywheel.
I'm sorry Stazi, but I think you are wrong here:
Far right of the clutch setup looks like a flywheel to me ... toothed gearing for starter engagement.
It has a special multiplate clutch that is small in diameter to keep the rotational inertia to a minimum, compared to a regular MT which has the clutch bolted to the flywheel, which is bolted to the crank. In the case of the GT, they left out the flywheel. 
Far right of the clutch setup looks like a flywheel to me ... toothed gearing for starter engagement.