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:

    Use coasting conditions
    When approaching a red light, take your foot off the accelerator and let the vehicle coast to a halt. On a downhill gradient, take your foot off the accelerator and let the vehicle roll. The flo ...

    Entering an address using a command
    1. Press the button on the steering wheel. 2. Enter address 3. Wait for a request from the system. 4. Say the address in the suggested order. 5. Continue making the entry as prompted by the ...

    Instrument lighting
    You can adjust the brightness of the instrument lighting only when the parking lamps or the low beams are switched on. 1.  Push button 1in the turn signal/high beam lever up or down repeated ...