[Porsche-O-Phile]

Sorry to hear - my own dad went through this last fall and is still recovering (it's a process that doesn't end). Physical therapy, occupational therapy, speech therapy...

The key to a successful recovery is that he needs to keep mentally tough and want to stick with the therapy when he comes to. It needs to start ASAP and he needs to push it. Have him hit it HARD - as hard as he can and as often as he can. If he does that he'll likely be fine. It might be the most important thing he's ever done and it won't always yield immediate or tangible results (discouragement or temporary "steps backward" need to be overcome with persistence.

All the best.