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.

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    Start/Stop button
    Start/Stop button Pressing the Start/Stop button switches the ignition on or off and starts the engine. The engine starts if the brake pedal is pressed when you press the Start/Stop button. ...

    General information
    Whether or not text messages and e-mails from the mobile phone are displayed depends on whether transmission from the mobile phone to the vehicle is supported. Text messages and emails may not ...

    Steering wheel
    General information Do not adjust while driving Do not adjust the steering wheel while driving; otherwise, an unexpected movement could result in an accident.◀ Manual steering wheel adju ...