SORRY ... but I donīt beleave that the redline of the S55(?) would be higher than the S63Tü redline ... and 7.500rpm no way !!!
If they choose the V6 I think 7.500rpm redline were an good target ... but with an N55 like I6 with its long stroke and its long crank its simply too costly by materials to reach this target.
I think we could be happy if they reach 7.000rpm ... and also this I donīt rally beleave.