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:
Indicator/warning lamps
The indicator and warning lamps can light up in
a variety of combinations and colors.
Several of the lamps are checked for proper
functioning and light up temporarily when the
engine is start ...
Pinch protection system
If the closing force when closing the glass sunroof
exceeds a certain value, the closing movement
is stopped, beginning at approximately
one-third of the opening in the roof, or from the
tilte ...
Units of measure
Setting the units of measure
To set the units for fuel consumption, route/distance
and temperature:
1. "Settings"
2. "Language/Units"
3. Select the desired menu item.
4. S ...