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:
Playing a supporting role: The innovative new 8-speed automatic
transmission.
Like many new BMW models, the new BMW X3 features an 8-speed automatic
transmission which brings smooth shifting, sportiness and efficiency to new
levels of perfection. Compared to the exemplary 6 ...
Arming and disarming the alarm
system
General information
When you lock or unlock the vehicle, either with
the remote control or at the door lock*, the alarm
system is armed or disarmed at the same time.
Door lock and armed alarm sy ...
SAFETY
The 2012 X5 received four out of five stars in rollover crash tests by the
National Highway Traffic Safety Administration. It hasn't undergone any of
NHTSA's other crash tests, and it hasn't been ...