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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    Switching the system on/off
    Switching off At the lowest fan speed, press the left side of the button on the driver's side. Switching on Press any button. ...

    Cupholders
    Notes Shatter-proof containers and no hot drinks Use light and shatter-proof containers and do not transport hot drinks. Otherwise, there is the increased danger of injury in an accident. U ...

    Functional requirements
    The system must have been reset when the inflation pressure was correct; otherwise, reliable signaling of a flat tire is not ensured. Always use wheels with TPM electronics to ensure that the ...