Under the Hood

The 135i's turbocharged inline-six makes 300 horsepower and 300 pounds-feet of torque. It works through a six-speed manual or BMW's seven-speed dual-clutch automatic. Either car hits 60 mph in about 5 seconds, BMW says. The M Sport Package adds a sport-tuned suspension with high-performance, six-piston front and two-piston rear brakes.

If that seems like too much, consider stepping down to the 230-hp, normally aspirated 128i, which is covered separately in the Cars.com Research section.

    See also:

    Selection lists in theinstrument cluster
    The concept The following can be operated using the buttons and the thumbwheel on the steering wheel and the display in the instrument cluster: ► Current audio source. ► Redial on t ...

    TRACTION
    When TRACTION is active, the vehicle has maximum traction on loose road surfaces. DTC Dynamic Traction Control, refer to page 105, is activated. Driving stability is limited during acceleration ...

    Activating HDC
    Activating HDC Press the button; the LED above the button lights up. The LED flashes when the brakes are applied automatically. ...