Exterior

With standard visual cues that come only with the 128i's optional M Sport Package, the 135i has an aggressive front bumper with three large air inlets. Xenon headlights are standard, and they carry a white bordering up top for 2012, mirroring the headlight treatment across most other BMWs. These lights include a string of LEDs embedded in the caps, a visual cue used in the automaker's redesigned 6 Series.

Rather than the 3 Series convertible's folding metal hardtop, the 135i convertible has a fabric soft-top that can open or close in 22 seconds, BMW says. It operates at speeds up to 25 mph.

The 1 Series remains a small car overall, about 2 inches shorter and narrower than a Scion tC. The popular 3 Series coupe, in comparison, measures about 10 inches longer.

    See also:

    Using this Owner's Manual
    The fastest way to find information on a particular topic is by using the index. An initial overview of the vehicle is provided in the first chapter. Updates made after the editorial deadline ...

    Tilt alarm sensor
    The tilt of the vehicle is monitored. The alarm system responds in situations such as attempts to steal a wheel or when the car is towed. ...

    Electrically adjustable seats
    At a glance 1 Seat and mirror memory 2 Backrest width 3 Lumbar support 4 Backrest tilt 5 Forward/backward, height, seat tilt Note The seat setting for the driver's seat is stored for the re ...