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:

    Exterior
    BMW says the front-end modifications for 2006 have been "executed with the utmost reserve and subtlety." In addition to the restyled hood, the 7 Series sedans have reshaped rocker panels ...

    Display in the instrument cluster
    The collision warning can be issued in the instrument cluster, in the Head-up Display, and acoustically. Warning stages Adapting your speed and driving style The display does not relieve ...

    Locking and unlocking
    Press the button in the vehicle. The doors and the tailgate are locked or unlocked when the front doors are closed, but they are not secured against theft. The fuel filler flap remains unlock ...