with the 997 line up almost complete, except the Turbo S & GT2 (if they do make'em). i doubt porsche can increase their engine performance anymore. they used to compete with the F360s but with the new F430s with its 480-490bhp engine seems out of reach for the NA porsches.
my question is when will they move on to an 8+ cylinder engine? will they still manage to put the engine at the back?