Herbaliser:

For improved high speed acceleration you need horsepower, not improved mid-range torque.  The car is rated at 580hp. It might maintain higher boost in the middle rpm range but obviously not much more at top rpm. Otherwise it wouldn't be only 20hp more. Given the insignificant improvement in the 0-200 acceleration, the 0-300 will be even less significant. So I bet that it's going to be 28+ :)

Let's wait for 2016 tests with AZ / AMuS / Sport Auto and more.