Performance Package version of the E71 X6 M coming with 600 horsepower?
We know BMW has been testing the S63 twin turbo V8 in the X6/X5 M and F10 M5 in higher states of tune
. An X6 M with large air scoops on the hood has been spotted testing as well as with other changes to the bodywork such as the side skirts. We know Mercedes will have a Performance Package available for the new ML63 AMG
so it seems BMW is preparing to respond. The questions are, will this package be available for retrofit to standard X6 M's and will it be a new higher performance model or just a factory option?