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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    Setting the voice dialog
    You can set whether the system should use the standard dialog or a shorter version. In the shorter variant of the voice dialog, the announcements from the system are issued in an abbreviated fo ...

    Activating the assistance functions
    More than one assistance function can be active at the same time. Showing the parking aid lines "Parking aid lines" Pathway and turning circle lines are displayed. Showing the obstacl ...