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 and convertible. The standard eight-speed automatic transmission includes steering-wheel-mounted shift paddles.
Other standard features include computer-controlled adaptive shock absorbers and Driving Dynamics Control, which allows the driver to adjust the ride quality, accelerator response, power-steering assist level and automatic transmission behavior.
Optional mechanical upgrades include active stabilizer bars and active steering, the latter of which adds rear-wheel steering to the earlier generation's variable-ratio front steering system.
See also:
System limits
Personal responsibility
The system cannot serve as a substitute
for the driver's personal judgment of the traffic
situation.
In the event of a warning, do not jerk the steering
wheel, as you ...
Exterior
If you took BMW's Z4, raised it up and lengthened the rear quarters to add
two more doors, you would get something of the X6's profile. The scalloped
headlights, twin kidney grilles and stacked ta ...
Programmable memory
buttons
General information
The Owner's Manual can be stored on the programmable
memory buttons and called up directly.
Storing
1. Select "Owner's Manual" via the iDrive.
2. Press the desire ...