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:
Using this Owner's Manual
The fastest way to find information on a particular
topic is by using the index.
An initial overview of the vehicle is provided in
the first chapter.
Updates made after the editorial deadline
A ...
Storing
1. Switch on the ignition.
2. Set the desired position.
3. Press the button. The LED in
the
button lights up.
4. Press the desired button 1 or
2. The LED
goes out.
If the M button is pre ...
The concept
The DTC system is a version of the DSC in which
forward momentum is optimized.
The system ensures maximum forward momentum
on special road conditions, e.g., unplowed
snowy roads, but driving st ...