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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    Display
    Instrument cluster Display in the instrument cluster. Instrument cluster with enhanced features Display in the instrument cluster with expanded scope. Detailed information on service req ...

    Contacts
    Contacts can be created and edited and the addresses can be adopted as destinations for navigation. ...

    Automatic deactivation of the front passenger airbags
    The system determines whether the front passenger seat is occupied by measuring the resistance of the human body. The front, knee, and side airbag on the front passenger side are activated or d ...