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:

    Status field symbols
    The symbols are grouped as follows. Radio symbols Telephone symbols Entertainment symbols Additional symbols ...

    Incoming call
    Receiving calls If the number of the caller is stored in the phone book and is transmitted by the network, the name of the contact is displayed. Accepting a call Via iDrive "Accept" ...

    Pairing and connecting a device
    Pairing a device To avoid becoming distracted and posing an unnecessary hazard both to your own vehicle's occupants and to other road users, only pair the device while the vehicle is stationa ...