Under the Hood

Both engines incorporate direct fuel injection and turbocharging. The xDrive35i uses a new 3.0-liter inline-six-cylinder with one turbocharger, while the xDrive50i uses a 4.4-liter V-8 with two. Power ratings are unchanged on the new six-cylinder, but BMW says it is more efficient. BMW says both engines promise minimal turbo lag and a flat torque curve that begins under 2,000 rpm.

300-horsepower, 3.0-liter six-cylinder with 300 pounds-feet of torque (xDrive35i)
400-hp, 4.4-liter eight-cylinder with 450 pounds-feet of torque (xDrive50i)
New eight-speed automatic transmission
xDrive's Dynamic Performance Control doles out power from front to rear and side to side, at least among the rear wheels
Differential electronically varies power proactively from a full 50/50 lock to as much as 100 percent going to either wheel to enhance performance and safety
Adaptive Drive system electronically alters suspension's stiffness between sport- and comfort-oriented settings to suit different driving conditions

    See also:

    Current fuel consumption
    Instrument cluster Displays the current fuel consumption. You can check whether you are currently driving in an efficient and environmentally- friendly manner. Instrument cluster with enhan ...

    Connecting the cables
    1. Open the cover of the BMW starting aid terminal. 2. Attach one terminal clamp of the positive jumper cable to the positive terminal of the battery, or to the corresponding starting aid termi ...

    Programming
    LED, arrow 1. Memory buttons, arrow 2. Fixed-code hand-held transmitters 1. Switch on the ignition. 2. Initial setup: Press both outer buttons 1 and 3 for approx. 20 seconds until the L ...