For the E70 owners that have been following this thread, the "Bavarian Motorwerks" seller on eBay says they do not have the E70 version yet but do plan to manufacture it.

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2008 X5 4.8i | Wheels: Summer> style 336 20" RFT; Winter> style 214 Ferric Grey 20" RFT | Aero kit | ESS E-Flash tune | V1 | LCI Rear Tail Lights | Coding completed | Engine replaced at 90K