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:
1975: the first generation - premiere as a two-door sedan with high-output
four-cylinder engines
The presentation of the first BMW 3-Series in July 1975 saw BMW write a new
chapter into the automotive history books. The two-door sedan wasted no time in
leaving its own distinctive stamp on the ...
Electromechanical steering increases agility and comfort
The driving enjoyment, agility and comfort are also down to an accurate
steering system which always gives the driver precise feedback. The typical BMW
rear-wheel-drive setup, which eliminates tor ...
Status display
The current status of the Tire Pressure Monitor
TPM can be displayed on the Control Display,
e.g., whether or not the TPM is active.
1. "Vehicle Info"
2. "Vehicle status"
3. ...