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:
Route criteria
General information
► The route calculated can be influenced by
selecting certain criteria.
► The route criteria can be changed when the
destination is entered and during destination
...
Interior lamps
General information
The interior lamps, footwell lamps, entry lamps
and courtesy lamps are controlled automatically.
The brightness of some of these lamps is influenced
by the thumbwheel for the ...
Start/Stop button
Pressing the Start/Stop button switches radio readiness or the ignition on or
off.
Manual transmission: if you press the Start/Stop
button and depress the clutch, the engine starts.
Automatic ...
