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:
Buckling the belt
Make sure you hear the latch plate engage in the
belt buckle.
Tensioning the safety belt
automatically
After the belt is buckled and the door is closed,
the belt is tightened once automatica ...
Doors
Automatic Soft Closing*
To close the doors, push lightly.
It is closed automatically.
Danger of pinching
Make sure that the closing path of the
doors is clear; otherwise, injuries may result. ...
Fuel specifications
Gasoline engine: required fuel
Do not use fuels that are labeled at the fuel pump
as containing metals.
Only refuel with lead-free gasoline without
metal additives
Do not refuel with leaded ...