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:
Rear operation
The control unit is located in the center console
in the rear.
Rear operation
1. Temperature, left rear seating area
2. AUTO program
3. Display
4. Temperature, right rear seating area
5. Sea ...
X3 in the Market
The compact luxury crossover segment has undergone a revolution since the
first-generation X3 debuted. Both the Q5 and GLK-Class have become popular
sellers, while X3 sales have lagged behind.
T ...
Integrated key
Press the button on the back of the remote control,
arrow 1, and pull out the key, arrow 2.
The integrated key fits the following locks:
► Driver's door.
► Glove compartment on t ...