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:
Speed Limit Info with No Passing Info display and Speed Limit Device
In combination with the navigation system Professional or Business, Speed
Limit Info helps alert drivers to the current speed limit on the road on which
they are travelling. The camera integrated ...
HD Radio™ reception
Many stations broadcast both analog and digital
signals.
License conditions
HD Radio™ technology manufactured under license
from iBiquity Digital Corp. U. S. and Foreign
Patents. HD Radio™ and ...
Notes
> Reception may not be available in some situations, such as under certain environmental
or topographic conditions. The satellite radio cannot influence this.
> The signal may not be availabl ...