Rear doors

Rear doors
Push the locking lever on the rear doors down.
The door can now be opened from the outside only.
See also:
The concept
This system reduces undesirable vehicle motion
when using a dynamic driving style or traveling
on uneven road surfaces.
The system enhances driving dynamics and
comfort as required for the road ...
Close the windows and glass
sunroof
Driving with the glass sunroof and windows
open results in increased air resistance and
raises fuel consumption. ...
2011 BMW 1 Series M Review by Joe Wiesenfelder
Based on the BMW 1 Series, the 1 Series M takes its place among M performance
versions of the 3, 5 and 6 Series cars and the X5 and X6 SUVs. Though the name
"M1" seems a natural, BMW use ...
