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:
Rain sensor
The concept
The time between wipes is controlled automatically
and depends on the intensity of the rainfall.
The sensor is located on the windshield, directly
in front of the interior rearview ...
Hands-free system
General information
Calls that are being made on the hands-free
system can be continued on the mobile phone
and vice versa.
From the mobile phone to the handsfree
system
Calls that were begun ou ...
Important parts of the engine compartment
1. Expansion tank for coolant,
2. Washer fluid filler neck for headlamp cleaning system and window
washer system,
3. Jump-starting connection,
4. Fluid filler neck for e ...