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:
Antilock Brake System ABS
ABS prevents locking of the wheels during braking.
The vehicle remains steerable even during full
brake applications, thus increasing active
safety.
ABS is operational every time you start the e ...
Headlamp courtesy delay feature
The low beams stay lit for a short while if the
headlamp flasher is switched on after the ignition
is switched off.
Setting the duration
1. "Settings"
2. "Lighting"
3. &quo ...
Service Request
At a glance
Sends information to your service partner to request
the arrangement of a service appointment.
The TeleService data is transmitted during
a Service Request. If possible, your servic ...