See also:

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 ...

Malfunction
In the event of a failure or malfunction of the parking brake, secure the vehicle against rolling using a wheel chock, for example, when leaving it. ...

The concept
The tire inflation pressure is measured in the four mounted tires. The system notifies you if there is a significant loss of pressure in one or more tires. ...