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:
Drive away without delay
Do not wait for the engine to warm up while the
vehicle remains stationary. Start driving right
away, but at moderate engine speeds.
This is the fastest way for the cold engine to
reach its ope ...
Timeshift
Approx. one hour of the program being broadcast
on the channel currently being listened to
is stored in a buffer. Prerequisite: the signal must
be available.
The stored audio track can be playe ...
Transmission positions
D Drive, automatic position
Position for normal vehicle operation. All forward
gears are available.
R is Reverse
Select only when the vehicle is stationary.
N is Neutral
Use in automatic car wa ...