I wonder. The AMG hits 100 in 4.9 secs. That's as fast as the C4S.
The Boxster might be sportier in some way, but who knows how sporty the AMG will be?!
And if Porsche gives one of the three Boxster models 350 PS, wouldnt it be worth a thought to buy a 997 model instead? Because I dont think that the prices of those 2 will differ much.

Hard policy they have.