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Under the Hood
The 640i is powered by a 315-horsepower, turbocharged 3.0-liter six-cylinder engine. Its peak torque rating is 332 pounds-feet. BMW cites a zero to 60 mph time of 5.5 seconds for both the coupe an ...

Unlocking and opening
▷ Press the button. The doors are unlocked. To open, pull the door handle above the armrest. ▷ Pull the door handle above the armrest twice: the door is unlocked the first time an ...

LATCH child restraint fixing system
LATCH: Lower Anchors and Tether for CHildren. ...