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.

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    SPORT+
    Sporty driving with optimized chassis and suspension with limited driving stabilization. The driver handles several of the stabilization tasks. Activating SPORT+ Press the button repeatedly unt ...

    Controls
    1 Change entertainment sources 2 Change station/track 3 Programmable memory buttons 4 Volume, on/off 5 Change wave band ...

    Opening/closing the sliding visor
    Press the switch in the desired direction to the resistance point and hold it there. The sliding visor moves while the switch is being held. Press the switch in the desired directio ...