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:

    Automatic climate control
    1 Vent settings 2 Air volume 3 AUTO program 4 Interior temperature sensor — always keep clear 5 Recirculated-air mode 6 Temperature 7 Defrosting windows and removing condensation 8 Cooling f ...

    Navigation
    Route planning can be performed separately on the left and right sides in the rear. Destination guidance can only be started from the front. Operation is the same as for the front navigation. Su ...

    Brake Force Display
    On the left: normal braking. On the right: sharp braking. When the rear fog lampsare switched on, the Brake Force Display is not active and the illuminated area for normal braking is reduced by a ...