Saw this on a couple magazine reviews and I'm wondering if US models have this feature, and if it really only applies to the AWD versions:
Quote:
An interesting technical change when adding xDrive AWD to the X1 28i model is an overboost engine function that bumps torque by about 109 pound-feet for brief periods of time.
The AWD xDrive 28i’s identical engine offers an immense 369 pound-feet of torque during hard launches, allowing the heavier model to match the rear-drive X1’s sprint performance. While not offered on the options list of the rear-drive cars, the engine’s tuning potential is an exciting piece of news for owners (to up the power via an ECU chip after the warranty expires).
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