Close the windows and glass sunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption.
See also:
E-mail
Displaying e-mails
1. "Office"
2. "Messages"
3. Select the desired e-mail.
Displaying e-mail contacts
If the sender and recipient of an e-mail are transmitted
by the mobile ...
Current fuel consumption
Current fuel consumption
Displays the current fuel consumption. You can
check whether you are currently driving in an efficient
and environmentally-friendly manner. ...
Safety
Both the coupe and convertible have front airbags plus side-impact airbags
built into the front seats. As required of all 2012 models sold in the U.S., the
640i has standard antilock brakes and an ...