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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    Rear door controls
    Roller blind for the side windows Press the button. The roller blind can only be extended or retracted when the side window is closed. Roller blind for rear window Press the button. Raising ...

    Children on the front passenger seat
    Should it ever be necessary to use a child restraint fixing system in the front passenger seat, make sure that the front, knee and side airbags on the front passenger side are deactivated. Autom ...

    Automatic climate control with enhanced features
    1 Vent settings 2 Temperature, left 3 Maximum cooling 4 AUTO program 5 Air volume, AUTO intensity 6 Interior temperature sensor — always keep clear 7 Display 8 Automatic recirculated-air con ...