What are folks experience with the X6 35i? Do you have any turbo lag/hesitation for launch. Also what kind of real work MPG are you getting?

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2011 X6 xDrive50i - Titanium Silver/Black Nevada/Bamboo.
Loaded except: Smartphone Int, Heated Rear Seats, Rear Ent, Lane Dep, SC Doors, 20" Wheels
2008 Aston Martin Vantage - Black/Black
Loaded